Merge branch '3.0.0-wip' of github.com:twitter/bootstrap into 3.0.0-wip

Conflicts:
	Makefile
	docs/_site/assets/js/bootstrap-typeahead.js
	docs/assets/js/bootstrap.min.js
	docs/customize.html
	docs/docs.html

22 files changed, 264 insertions, 436 deletions

diff --git a/less/accordion.less b/less/accordion.less
index 064377d05..59765f154 100644
--- a/less/accordion.less
+++ b/less/accordion.less
@@ -5,7 +5,7 @@
 
 // Parent container
 .accordion {
-  margin-bottom: @line-height-base;
+  margin-bottom: @line-height-computed;
 }
 
 // Group == heading + body
diff --git a/less/alerts.less b/less/alerts.less
index 882b25bef..bb7846249 100644
--- a/less/alerts.less
+++ b/less/alerts.less
@@ -7,8 +7,8 @@
 // -------------------------
 
 .alert {
-  padding: 8px 35px 8px 14px;
-  margin-bottom: @line-height-base;
+  padding: 10px 35px 10px 15px;
+  margin-bottom: @line-height-computed;
   color: @alert-text;
   background-color: @alert-bg;
   border: 1px solid @alert-border;
@@ -84,8 +84,8 @@
 // -------------------------
 
 .alert-block {
-  padding-top: 14px;
-  padding-bottom: 14px;
+  padding-top: 15px;
+  padding-bottom: 15px;
 }
 .alert-block > p,
 .alert-block > ul {
diff --git a/less/breadcrumbs.less b/less/breadcrumbs.less
index 87a6f0e37..2fe8217a3 100644
--- a/less/breadcrumbs.less
+++ b/less/breadcrumbs.less
@@ -5,7 +5,7 @@
 
 .breadcrumb {
   padding: 8px 15px;
-  margin: 0 0 @line-height-base;
+  margin: 0 0 @line-height-computed;
   list-style: none;
   background-color: #f5f5f5;
   border-radius: @border-radius-base;
diff --git a/less/button-groups.less b/less/button-groups.less
index 6f9a52acd..f7934a328 100644
--- a/less/button-groups.less
+++ b/less/button-groups.less
@@ -11,17 +11,14 @@
 }
 
 // Make the div behave like a button
-.btn-group {
+.btn-group,
+.btn-group-vertical {
   position: relative;
   display: inline-block;
   vertical-align: middle; // match .btn alignment given font-size hack above
   > .btn {
     position: relative;
     float: left;
-    // Prevent double borders when buttons are next to each other
-    + btn {
-      margin-left: -1px;
-    }
     // Bring the "active" button to the front
     &:hover,
     &:active {
@@ -30,6 +27,11 @@
   }
 }
 
+// Prevent double borders when buttons are next to each other
+.btn-group .btn + .btn {
+  margin-left: -1px;
+}
+
 // Optional: Group multiple button groups together for a toolbar
 .btn-toolbar {
   .clearfix();
@@ -46,46 +48,36 @@
   }
 }
 
-// Float them, remove border radius, then re-add to first and last elements
-.btn-group > .btn {
-  position: relative;
+.btn-group > .btn:not(:first-child):not(:last-child):not(.dropdown-toggle) {
   border-radius: 0;
 }
 
-
 // Set corners individual because sometimes a single button can be in a .btn-group and we need :first-child and :last-child to both match
 .btn-group > .btn:first-child {
   margin-left: 0;
-  .border-left-radius(@border-radius-base);
+  &:not(:last-child):not(.dropdown-toggle) {
+    .border-right-radius(0);
+  }
 }
 // Need .dropdown-toggle since :last-child doesn't apply given a .dropdown-menu immediately after it
-.btn-group > .btn:last-child,
-.btn-group > .dropdown-toggle {
-  .border-right-radius(@border-radius-base);
-}
-// Reset corners for large buttons
-.btn-group > .btn.large:first-child {
-  margin-left: 0;
-  .border-left-radius(@border-radius-large);
-}
-.btn-group > .btn.large:last-child,
-.btn-group > .large.dropdown-toggle {
-  .border-right-radius(@border-radius-large);
+.btn-group > .btn:last-child:not(:first-child),
+.btn-group > .dropdown-toggle:not(:first-child) {
+  .border-left-radius(0);
 }
 
 // Custom edits for including btn-groups within btn-groups (useful for including dropdown buttons within a btn-group)
 .btn-group > .btn-group {
   float: left;
 }
-.btn-group > .btn-group > .btn {
+.btn-group > .btn-group:not(:first-child):not(:last-child) > .btn {
   border-radius: 0;
 }
-.btn-group > .btn-group:last-child > .btn {
-  .border-right-radius(@border-radius-base);
+.btn-group > .btn-group:first-child > .btn:last-child,
+.btn-group > .btn-group:first-child > .dropdown-toggle {
+  .border-right-radius(0);
 }
-.btn-group > .btn-group:first-child > .btn {
-  margin-left: 0;
-  .border-left-radius(@border-radius-base);
+.btn-group > .btn-group:last-child > .btn:first-child {
+  .border-left-radius(0);
 }
 
 // On active and open, don't show outline
@@ -122,7 +114,6 @@
 
 // Reposition the caret
 .btn .caret {
-  margin-top: 8px;
   margin-left: 0;
 }
 // Carets in other button sizes
@@ -143,20 +134,18 @@
   float: none;
   width: 100%;
   max-width: 100%;
+  + .btn {
+    margin-top: -1px;
+  }
+}
+.btn-group-vertical .btn:not(:first-child):not(:last-child) {
+  border-radius: 0;
 }
 .btn-group-vertical .btn:first-child {
-  border-radius: 0; // Needs to be here for specificity since we're not zeroing them out again
-  .border-top-radius(@border-radius-base);
+  .border-bottom-radius(0);
 }
 .btn-group-vertical .btn:last-child {
-  border-radius: 0; // Needs to be here for specificity since we're not zeroing them out again
-  .border-bottom-radius(@border-radius-base);
-}
-.btn-group-vertical .btn-large:first-child {
-  .border-top-radius(@border-radius-large);
-}
-.btn-group-vertical .btn-large:last-child {
-  .border-bottom-radius(@border-radius-large);
+  .border-top-radius(0);
 }
 
 
diff --git a/less/buttons.less b/less/buttons.less
index 128971a4c..6280d3448 100644
--- a/less/buttons.less
+++ b/less/buttons.less
@@ -9,7 +9,7 @@
 // Core styles
 .btn {
   display: inline-block;
-  padding: 6px 12px;
+  padding: @padding-base-vertical @padding-base-horizontal;
   margin-bottom: 0; // For input.btn
   font-size: @font-size-base;
   font-weight: 500;
@@ -123,18 +123,14 @@ fieldset[disabled] .btn-link {
 // --------------------------------------------------
 
 .btn-large {
-  padding: @padding-large;
+  padding: @padding-large-vertical @padding-large-horizontal;
   font-size: @font-size-large;
   border-radius: @border-radius-large;
 }
 .btn-small {
-  padding: @padding-small;
+  padding: @padding-small-vertical @padding-small-horizontal;
   font-size: @font-size-small;
-  border-radius: @border-radius-small;
-}
-.btn-mini {
-  padding: @padding-mini;
-  font-size: @font-size-mini;
+  line-height: 1.5; // ensure proper height of button next to small input
   border-radius: @border-radius-small;
 }
 
diff --git a/less/code.less b/less/code.less
index d9ddbc3a4..f1bc0a0cd 100644
--- a/less/code.less
+++ b/less/code.less
@@ -25,8 +25,8 @@ code {
 // Blocks of code
 pre {
   display: block;
-  padding: ((@line-height-base - 1) / 2);
-  margin: 0 0 (@line-height-base / 2);
+  padding: ((@line-height-computed - 1) / 2);
+  margin: 0 0 (@line-height-computed / 2);
   font-size: (@font-size-base - 1); // 14px to 13px
   line-height: @line-height-base;
   word-break: break-all;
@@ -40,7 +40,7 @@ pre {
 
   // Make prettyprint styles more spaced out for readability
   &.prettyprint {
-    margin-bottom: @line-height-base;
+    margin-bottom: @line-height-computed;
   }
 
   // Account for some code outputs that place code tags in pre tags
diff --git a/less/dropdowns.less b/less/dropdowns.less
index c4fd8598b..1b9165b4e 100644
--- a/less/dropdowns.less
+++ b/less/dropdowns.less
@@ -3,35 +3,20 @@
 // --------------------------------------------------
 
 
-// Use the .menu class on any <li> element within the topbar or ul.tabs and you'll get some superfancy dropdowns
-.dropup,
-.dropdown {
-  position: relative;
-}
-.dropdown-toggle:active,
-.open .dropdown-toggle {
-  outline: 0;
-}
-
 // Dropdown arrow/caret
 // --------------------
 .caret {
   display: inline-block;
   width: 0;
   height: 0;
-  vertical-align: top;
+  margin-left: 2px;
+  vertical-align: middle;
   border-top:   4px solid #000;
   border-right: 4px solid transparent;
   border-left:  4px solid transparent;
   content: "";
 }
 
-// Place the caret
-.dropdown .caret {
-  margin-top: 8px;
-  margin-left: 2px;
-}
-
 // The dropdown menu (ul)
 // ----------------------
 .dropdown-menu {
@@ -118,9 +103,15 @@
 // Open state for the dropdown
 // ---------------------------
 .open {
-  & > .dropdown-menu {
+  // Show the menu
+  > .dropdown-menu {
     display: block;
   }
+
+  // Remove the outline when :focus is triggered
+  > a {
+    outline: 0;
+  }
 }
 
 // Right aligned dropdowns
diff --git a/less/forms.less b/less/forms.less
index 6162cd4f1..2c696945d 100644
--- a/less/forms.less
+++ b/less/forms.less
@@ -20,9 +20,9 @@ legend {
   display: block;
   width: 100%;
   padding: 0;
-  margin-bottom: @line-height-base;
+  margin-bottom: @line-height-computed;
   font-size: (@font-size-base * 1.5);
-  line-height: (@line-height-base * 2);
+  line-height: inherit;
   color: @gray-dark;
   border: 0;
   border-bottom: 1px solid #e5e5e5;
@@ -56,8 +56,7 @@ input[type="tel"],
 input[type="color"] {
   display: block;
   min-height: @input-height-base; // Make inputs at least the height of their button counterpart (base line-height + padding + border)
-  padding: 6px 9px;
-  margin-bottom: 10px;
+  padding: @padding-base-vertical @padding-base-horizontal;
   font-size: @font-size-base;
   line-height: @line-height-base;
   color: @gray;
@@ -66,7 +65,13 @@ input[type="color"] {
   border: 1px solid @input-border;
   border-radius: @input-border-radius;
   .box-shadow(inset 0 1px 1px rgba(0,0,0,.075));
-  .transition(~"border-color linear .2s, box-shadow linear .2s");
+  .transition(~"border-color ease-in-out .15s, box-shadow ease-in-out .15s");
+
+  &:focus {
+    border-color: rgba(82,168,236,.8);
+    outline: 0;
+    .box-shadow(~"inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(82,168,236,.6)");
+  }
 }
 
 // Reset appearance properties for textual inputs and textarea
@@ -98,32 +103,6 @@ textarea {
   height: auto;
 }
 
-// Everything else
-textarea,
-input[type="text"],
-input[type="password"],
-input[type="datetime"],
-input[type="datetime-local"],
-input[type="date"],
-input[type="month"],
-input[type="time"],
-input[type="week"],
-input[type="number"],
-input[type="email"],
-input[type="url"],
-input[type="search"],
-input[type="tel"],
-input[type="color"] {
-  // Focus state
-  &:focus {
-    border-color: rgba(82,168,236,.8);
-    outline: 0;
-    outline: thin dotted \9; /* IE6-9 */
-    //.box-shadow(~"inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(82,168,236,.6)");
-    .box-shadow(0 0 8px rgba(82,168,236,.6));
-  }
-}
-
 // Position radios and checkboxes better
 input[type="radio"],
 input[type="checkbox"] {
@@ -146,7 +125,6 @@ select[size] {
 }
 
 // Focus for select, file, radio, and checkbox
-select:focus,
 input[type="file"]:focus,
 input[type="radio"]:focus,
 input[type="checkbox"]:focus {
@@ -171,8 +149,9 @@ textarea {
 .radio,
 .checkbox {
   display: block;
-  min-height: @line-height-base; // clear the floating input if there is no label text
-  margin-bottom: (@line-height-base / 2);
+  min-height: @line-height-computed; // clear the floating input if there is no label text
+  margin-top: 10px;
+  margin-bottom: 10px;
   padding-left: 20px;
   vertical-align: middle;
   label {
@@ -182,7 +161,6 @@ textarea {
     cursor: pointer;
   }
 }
-
 .radio input[type="radio"],
 .radio-inline input[type="radio"],
 .checkbox input[type="checkbox"],
@@ -192,7 +170,7 @@ textarea {
 }
 .radio + .radio,
 .checkbox + .checkbox {
-  margin-top: ((@line-height-base / 4) * -1);
+  margin-top: -5px; // Move up sibling radios or checkboxes for tighter spacing
 }
 
 /*
@@ -242,46 +220,19 @@ input[type="search"],
 input[type="tel"],
 input[type="color"] {
   &.input-large {
-    padding: @padding-large;
+    padding: @padding-large-vertical @padding-large-horizontal;
     font-size: @font-size-large;
     border-radius: @border-radius-large;
   }
   &.input-small {
     min-height: @input-height-small;
-    padding: @padding-small;
+    padding: @padding-small-vertical @padding-small-horizontal;
     font-size: @font-size-small;
     border-radius: @border-radius-small;
   }
 }
 
 
-
-// GRID SIZING FOR INPUTS
-// ----------------------
-
-// Grid style input sizes
-input[class*="span"],
-select[class*="span"],
-textarea[class*="span"] {
-  float: none;
-  margin-left: 0;
-  margin-right: 0;
-}
-
-// Ensure input-prepend/append never wraps
-.input-append input[class*="span"],
-.input-prepend input[class*="span"] {
-  display: inline-block;
-}
-
-input[class*="span"],
-select[class*="span"],
-textarea[class*="span"] {
-  height: @input-height-base;
-}
-
-
-
 // DISABLED STATE
 // --------------
 
@@ -348,9 +299,9 @@ select:focus:invalid {
 // ------------
 
 .form-actions {
-  padding: (@line-height-base - 1) 20px @line-height-base;
-  margin-top: @line-height-base;
-  margin-bottom: @line-height-base;
+  padding: @line-height-computed 20px;
+  margin-top: @line-height-computed;
+  margin-bottom: @line-height-computed;
   background-color: @form-actions-bg;
   border-top: 1px solid #e5e5e5;
   .clearfix(); // Adding clearfix to allow for .pull-right button containers
@@ -361,20 +312,11 @@ select:focus:invalid {
 // HELP TEXT
 // ---------
 
-.help-block,
-.help-inline {
-  color: lighten(@text-color, 25%); // lighten the text some for contrast
-}
-
 .help-block {
   display: block; // account for any element using help-block
-  margin-bottom: (@line-height-base / 2);
-}
-
-.help-inline {
-  display: inline-block;
-  vertical-align: middle;
-  padding-left: 5px;
+  margin-top: 5px;
+  margin-bottom: 10px;
+  color: lighten(@text-color, 25%); // lighten the text some for contrast
 }
 
 
@@ -407,12 +349,8 @@ select:focus:invalid {
 .input-group-btn,
 .input-group input {
   display: table-cell;
-  /*margin: 0;*/
-  border-radius: 0;
-  &.input-small {
-    border-radius: 0;
-  }
-  &.input-large {
+
+  &:not(:first-child):not(:last-child) {
     border-radius: 0;
   }
 }
@@ -435,40 +373,37 @@ select:focus:invalid {
   text-shadow: 0 1px 0 #fff;
   background-color: @gray-lighter;
   border: 1px solid #ccc;
+  border-radius: @border-radius-base;
 
-	&.input-small {
-	  padding: @padding-small;
-	  font-size: @font-size-small;
+  &.input-small {
+    padding: @padding-small-vertical @padding-small-horizontal;
+    font-size: @font-size-small;
+    border-radius: @border-radius-small;
+  }
+  &.input-large {
+    padding: @padding-large-vertical @padding-large-horizontal;
+    font-size: @font-size-large;
+    border-radius: @border-radius-large;
   }
-	&.input-large {
-		padding: @padding-large;
-		font-size: @font-size-large;
-	}
 }
 
 // Reset rounded corners
 .input-group input:first-child,
-.input-group-addon:first-child {
-  .border-left-radius(@border-radius-base);
-  &.input-small {
-    .border-left-radius(@border-radius-small);
-  }
-  &.input-large {
-    .border-left-radius(@border-radius-large);
-  }
+.input-group-addon:first-child,
+.input-group-btn:first-child > .btn,
+.input-group-btn:first-child > .dropdown-toggle,
+.input-group-btn:last-child > .btn:not(:last-child):not(.dropdown-toggle) {
+  .border-right-radius(0);
 }
 .input-group-addon:first-child {
   border-right: 0;
 }
 .input-group input:last-child,
-.input-group-addon:last-child {
-  .border-right-radius(@border-radius-base);
-  &.input-small {
-    .border-right-radius(@border-radius-small);
-  }
-  &.input-large {
-    .border-right-radius(@border-radius-large);
-  }
+.input-group-addon:last-child,
+.input-group-btn:last-child > .btn,
+.input-group-btn:last-child > .dropdown-toggle,
+.input-group-btn:first-child > .btn:not(:first-child) {
+  .border-left-radius(0);
 }
 .input-group-addon:last-child {
   border-left: 0;
@@ -483,7 +418,6 @@ select:focus:invalid {
 .input-group-btn > .btn {
   position: relative;
   float: left; // Collapse white-space
-  border-radius: 0;
   + .btn {
     margin-left: -1px;
   }
@@ -494,29 +428,6 @@ select:focus:invalid {
   }
 }
 
-// Prepended buttons
-.input-group-btn:first-child {
-  // Round the left corners only
-  > .btn:first-child,
-  > .dropdown-toggle:first-child {
-    .border-left-radius(@border-radius-base);
-    &.btn-large { .border-left-radius(@border-radius-large); }
-    &.btn-small { .border-left-radius(@border-radius-small); }
-  }
-}
-
-// Appended buttons
-.input-group-btn:last-child {
-  // Round the right corners only
-  > .btn:last-child,
-  > .dropdown-toggle {
-    .border-right-radius(@border-radius-base);
-    &.btn-large { .border-right-radius(@border-radius-large); }
-    &.btn-small { .border-right-radius(@border-radius-small); }
-  }
-}
-
-
 
 // Inline forms
 // --------------------------------------------------
@@ -528,6 +439,10 @@ select:focus:invalid {
   .radio,
   .checkbox {
     display: inline-block;
+  }
+  .radio,
+  .checkbox {
+    margin-top: 0;
     margin-bottom: 0;
   }
 }
@@ -535,41 +450,20 @@ select:focus:invalid {
 
 // Horizontal forms
 // --------------------------------------------------
+// Horizontal forms are built on grid classes.
 
-@media screen and (min-width: @screen-tablet) {
-
-  .form-horizontal {
-
-    // Increase spacing between groups
-    .control-group {
-      position: relative;
-      margin-bottom: @line-height-base;
-      .clearfix();
-
-      input,
-      select,
-      textarea {
-        margin-bottom: 0;
-      }
-    }
-
-    // Float the labels left
-    .control-group > .control-label {
-      float: left;
-      width: (@component-offset-horizontal - 20);
-      padding-top: 6px;
-      text-align: right;
-    }
-
-    // Move over all input controls and content over
-    .control-group > .controls {
-      margin-left: @component-offset-horizontal;
-    }
-
-    // Make sure form actions buttons are aligned with controls
-    .form-actions {
-      padding-left: @component-offset-horizontal;
-    }
+.form-horizontal {
+  .row + .row {
+    margin-top: 15px;
+  }
+  .row-label {
+    padding-top: 6px;
+  }
+}
 
+// Only right aline form labels here when the columns stop stacking
+@media (min-width: 768px) {
+  .form-horizontal .row-label {
+    text-align: right;
   }
 }
diff --git a/less/glyphicons.less b/less/glyphicons.less
index e8a96c05f..0d935ea19 100644
--- a/less/glyphicons.less
+++ b/less/glyphicons.less
@@ -34,6 +34,7 @@
   font-style: normal;
   font-weight: normal;
   line-height: 1;
+  -webkit-font-smoothing: antialiased;
 }
 
 // Individual icons
diff --git a/less/mixins.less b/less/mixins.less
index 48e2073c5..dcba39f85 100644
--- a/less/mixins.less
+++ b/less/mixins.less
@@ -340,7 +340,7 @@
 // Dividers (basically an hr) within dropdowns and nav lists
 .nav-divider(@top: #e5e5e5, @bottom: #fff) {
   height: 2px; // 1px for background, one for border
-  margin: ((@line-height-base / 2) - 1) 0;
+  margin: ((@line-height-computed / 2) - 1) 0;
   overflow: hidden;
   background-color: @top;
   border-bottom: 1px solid @bottom;
@@ -444,9 +444,6 @@
   }
 }
 
-
-
-
 // Small grid columns
 .generate-grid-columns(@grid-columns) {
 
diff --git a/less/navbar.less b/less/navbar.less
index 494f43b6f..13a36781e 100644
--- a/less/navbar.less
+++ b/less/navbar.less
@@ -21,13 +21,15 @@
 .navbar-nav {
   // Space out from .navbar .brand and .btn-navbar when stacked in mobile views
   // and outdent nav links so text lines up with logo.
-  margin: 10px -15px 0;
+  margin-top: 10px;
+  margin-bottom: 15px;
 
   > li > a {
-    padding-top: ((@navbar-height - @line-height-base) / 2);
-    padding-bottom: ((@navbar-height - @line-height-base) / 2);
+    padding-top: ((@navbar-height - @line-height-computed) / 2);
+    padding-bottom: ((@navbar-height - @line-height-computed) / 2);
     color: @navbar-link-color;
     line-height: 20px;
+    border-radius: @border-radius-base;
   }
   > li > a:hover,
   > li > a:focus {
@@ -91,7 +93,7 @@
   padding: 15px;
   font-size: @font-size-large;
   font-weight: 500;
-  line-height: @line-height-base;
+  line-height: @line-height-computed;
   color: @navbar-brand-color;
   text-align: center;
   &:hover,
@@ -132,6 +134,7 @@
 
 // Navbar form
 .navbar-form {
+  .form-inline();
   .navbar-vertical-align(34px); // Vertically center in navbar
 }
 
@@ -152,26 +155,26 @@
 // Dropdown menu items and carets
 .navbar-nav {
   // Caret should match text color on hover
-  li.dropdown > a:hover .caret,
-  li.dropdown > a:focus .caret {
+  > .dropdown > a:hover .caret,
+  > .dropdown > a:focus .caret {
     border-top-color: @navbar-link-hover-color;
     border-bottom-color: @navbar-link-hover-color;
   }
 
   // Remove background color from open dropdown
-  li.dropdown.open > .dropdown-toggle,
-  li.dropdown.active > .dropdown-toggle,
-  li.dropdown.open.active > .dropdown-toggle {
+  > .open > a,
+  > .open > a:hover,
+  > .open > a:focus {
     background-color: @navbar-link-active-bg;
     color: @navbar-link-active-color;
   }
-  li.dropdown > .dropdown-toggle .caret {
+  > .dropdown > a .caret {
     border-top-color: @navbar-link-color;
     border-bottom-color: @navbar-link-color;
   }
-  li.dropdown.open > .dropdown-toggle .caret,
-  li.dropdown.active > .dropdown-toggle .caret,
-  li.dropdown.open.active > .dropdown-toggle .caret {
+  > .open > a .caret,
+  > .open > a:hover .caret,
+  > .open > a:focus .caret {
     border-top-color: @navbar-link-active-color;
     border-bottom-color: @navbar-link-active-color;
   }
@@ -242,23 +245,23 @@
 
   // Dropdowns
   .navbar-nav {
-    li.dropdown.open > .dropdown-toggle,
-    li.dropdown.active > .dropdown-toggle,
-    li.dropdown.open.active > .dropdown-toggle {
+    > .open > a,
+    > .open > a:hover,
+    > .open > a:focus {
       background-color: @navbar-inverse-link-active-bg;
       color: @navbar-inverse-link-active-color;
     }
-    li.dropdown > a:hover .caret {
+    > .dropdown > a:hover .caret {
       border-top-color: @navbar-inverse-link-hover-color;
       border-bottom-color: @navbar-inverse-link-hover-color;
     }
-    li.dropdown > .dropdown-toggle .caret {
+    > .dropdown > a .caret {
       border-top-color: @navbar-inverse-link-color;
       border-bottom-color: @navbar-inverse-link-color;
     }
-    li.dropdown.open > .dropdown-toggle .caret,
-    li.dropdown.active > .dropdown-toggle .caret,
-    li.dropdown.open.active > .dropdown-toggle .caret {
+    > .open > a .caret,
+    > .open > a:hover .caret,
+    > .open > a:focus .caret {
       border-top-color: @navbar-inverse-link-active-color;
       border-bottom-color: @navbar-inverse-link-active-color;
     }
@@ -280,10 +283,15 @@
   }
   .navbar .nav {
     float: left;
-    margin-top: 0; // undo top margin to make nav extend full height of navbar
+    // undo margin to make nav extend full height of navbar
+    margin-top: 0;
+    margin-bottom: 0;
 
     > li {
       float: left;
+      > a {
+        border-radius: 0;
+      }
     }
 
     &.pull-right {
@@ -322,7 +330,7 @@
 // Add a class to make any element properly align itself vertically within the navbars.
 
 .navbar-text {
-
+  .navbar-vertical-align(@line-height-computed);
 }
 
 
diff --git a/less/navs.less b/less/navs.less
index 8daeb6fd9..e5925bf63 100644
--- a/less/navs.less
+++ b/less/navs.less
@@ -12,8 +12,11 @@
   padding-left: 0; // Override default ul/ol
   list-style: none;
   .clearfix();
+
   > li {
+    position: relative;
     display: block;
+
     > a {
       position: relative;
       display: block;
@@ -25,17 +28,10 @@
       }
     }
 
-    // Nav states and addons
-    // --------------------------------------------------
-
-    // Disabled state
-    // -------------------------
-
-    // Gray out text
+    // Disabled state sets text to gray and nukes hover/tab effects
     &.disabled > a {
       color: @gray-light;
     }
-    // Nuke hover effects
     &.disabled > a:hover,
     &.disabled > a:focus {
       color: @gray-light;
@@ -43,12 +39,26 @@
       background-color: transparent;
       cursor: default;
     }
+
     // Space the headers out when they follow another list item (link)
-    &+ .nav-header {
+    + .nav-header {
       margin-top: 9px;
     }
   }
 
+  // Open dropdowns
+  &.open > a,
+  &.open > a:hover,
+  &.open > a:focus {
+    color: #fff;
+    background-color: @link-color;
+    border-color: @link-color;
+    .caret {
+      border-top-color: #fff;
+      border-bottom-color: #fff;
+    }
+  }
+
   // Redeclare pull classes because of specifity
   // Todo: consider making these utilities !important to avoid this bullshit
   > .pull-right {
@@ -56,7 +66,7 @@
   }
 
   // Dividers (basically an hr) within the dropdown
-  .divider {
+  .nav-divider {
     .nav-divider();
   }
 }
@@ -215,71 +225,23 @@
 
 
 
-/*
-// Prevent IE8 from misplacing imgs
-// See https://github.com/h5bp/html5-boilerplate/issues/984#issuecomment-3985989
-.nav > li > a > img {
-  max-width: none;
-}
-
 // Dropdowns
 // -------------------------
 
-.nav-tabs .dropdown-menu {
-  // Remove the top rounded corners here since there is a hard edge above the menu
-  .border-top-radius(0);
-}
-
-// Default dropdown links
-// -------------------------
-// Make carets use linkColor to start
-.nav .dropdown-toggle .caret {
+// Make dropdown carets use link color in navs
+.nav .caret {
   border-top-color: @link-color;
   border-bottom-color: @link-color;
-  margin-top: 8px;
 }
-.nav .dropdown-toggle:hover .caret {
+.nav a:hover .caret {
   border-top-color: @link-hover-color;
   border-bottom-color: @link-hover-color;
 }
 
-// Active dropdown links
-// -------------------------
-.nav .active .dropdown-toggle .caret {
-  border-top-color: #fff;
-  border-bottom-color: #fff;
-}
-.nav-tabs .active .dropdown-toggle .caret {
-  border-top-color: @gray;
-  border-bottom-color: @gray;
-}
-
-// Active:hover dropdown links
-// -------------------------
-.nav > .dropdown.active > a:hover {
-  cursor: pointer;
-}
-
-// Open dropdowns
-// -------------------------
-.nav-tabs .open .dropdown-toggle,
-.nav-pills .open .dropdown-toggle,
-.nav > li.dropdown.open.active > a:hover {
-  color: #fff;
-  background-color: @gray-light;
-  border-color: @gray-light;
-}
-.nav li.dropdown.open .caret,
-.nav li.dropdown.open.active .caret,
-.nav li.dropdown.open a:hover .caret {
-  border-top-color: #fff;
-  border-bottom-color: #fff;
-  .opacity(1);
-}
-
-// Dropdowns in stacked tabs
-.tabs-stacked .open > a:hover {
-  border-color: @gray-light;
+// Specific dropdowns
+.nav-tabs .dropdown-menu {
+  // make dropdown border overlap tab border
+  margin-top: -1px;
+  // Remove the top rounded corners here since there is a hard edge above the menu
+  .border-top-radius(0);
 }
-
-*/
diff --git a/less/pager.less b/less/pager.less
index cc1947a91..0b2fcf7cb 100644
--- a/less/pager.less
+++ b/less/pager.less
@@ -4,7 +4,7 @@
 
 
 .pager {
-  margin: @line-height-base 0;
+  margin: @line-height-computed 0;
   list-style: none;
   text-align: center;
   .clearfix();
diff --git a/less/pagination.less b/less/pagination.less
index bb44fa8cf..73c063be0 100644
--- a/less/pagination.less
+++ b/less/pagination.less
@@ -3,7 +3,7 @@
 // --------------------------------------------------
 .pagination {
   display: inline-block;
-  margin: @line-height-base 0;
+  margin: @line-height-computed 0;
   border-radius: @border-radius-base;
 }
 .pagination > li {
@@ -56,7 +56,7 @@
 .pagination-large {
   > li > a,
   > li > span {
-    padding: @padding-large;
+    padding: @padding-large-vertical @padding-large-horizontal;
     font-size: @font-size-large;
   }
   > li:first-child > a,
@@ -69,9 +69,13 @@
   }
 }
 
-// Small and mini
-.pagination-mini,
+// Small
 .pagination-small {
+  > li > a,
+  > li > span {
+    padding: @padding-small-vertical @padding-small-horizontal;
+    font-size: @font-size-small;
+  }
   > li:first-child > a,
   > li:first-child > span {
     .border-left-radius(@border-radius-small);
@@ -81,20 +85,3 @@
     .border-right-radius(@border-radius-small);
   }
 }
-
-// Small
-.pagination-small {
-  > li > a,
-  > li > span {
-    padding: @padding-small;
-    font-size: @font-size-small;
-  }
-}
-// Mini
-.pagination-mini {
-  > li > a,
-  > li > span {
-    padding: @padding-mini;
-    font-size: @font-size-mini;
-  }
-}
diff --git a/less/panels.less b/less/panels.less
index 0d5a07ad4..a08febef3 100644
--- a/less/panels.less
+++ b/less/panels.less
@@ -25,6 +25,16 @@
   border-top-right-radius: (@panel-border-radius - 1);
 }
 
+// Optional footer (stays gray in every modifier class)
+.panel-footer {
+  margin: 15px -15px -15px;
+  padding: 10px 15px;
+  background-color: @panel-footer-bg;
+  border-top: 1px solid @panel-border;
+  border-bottom-left-radius:  (@panel-border-radius - 1);
+  border-bottom-right-radius: (@panel-border-radius - 1);
+}
+
 // Contextual variations
 .panel-primary {
   border-color: @panel-primary-border;
diff --git a/less/print.less b/less/print.less
index db2749206..ec71acbbd 100644
--- a/less/print.less
+++ b/less/print.less
@@ -52,7 +52,7 @@
   }
 
   @page {
-    margin: 0.5cm;
+    margin: 2cm .5cm;
   }
 
   p,
@@ -68,7 +68,7 @@
   }
 
   // Bootstrap components
-  .navbar-toggle {
+  .navbar {
     display: none;
   }
 }
diff --git a/less/progress-bars.less b/less/progress-bars.less
index e5e6b65a5..e963fa968 100644
--- a/less/progress-bars.less
+++ b/less/progress-bars.less
@@ -44,8 +44,8 @@
 // Outer container
 .progress {
   overflow: hidden;
-  height: @line-height-base;
-  margin-bottom: @line-height-base;
+  height: @line-height-computed;
+  margin-bottom: @line-height-computed;
   background-color: @progress-bg;
   border-radius: @border-radius-base;
   .box-shadow(inset 0 1px 2px rgba(0,0,0,.1));
@@ -63,7 +63,6 @@
   background-color: @progress-bar-bg;
   .box-shadow(inset 0 -1px 0 rgba(0,0,0,.15));
   .transition(width .6s ease);
-  .backface-visibility(hidden);
 }
 
 // Striped bars
diff --git a/less/responsive-utilities.less b/less/responsive-utilities.less
index c69851bb9..09a0955f8 100644
--- a/less/responsive-utilities.less
+++ b/less/responsive-utilities.less
@@ -36,40 +36,40 @@
 // Visibility utilities
 
 // For Phones
-.visible-phone     { display: inherit !important; }
-.visible-tablet    { display: none !important; }
-.visible-desktop   { display: none !important; }
+.visible-sm   { display: inherit !important; }
+.visible-md   { display: none !important; }
+.visible-lg   { display: none !important; }
 
-.hidden-phone      { display: none !important; }
-.hidden-tablet     { display: inherit !important; }
-.hidden-desktop    { display: inherit !important; }
+.hidden-sm    { display: none !important; }
+.hidden-md    { display: inherit !important; }
+.hidden-lg    { display: inherit !important; }
 
 
 // Tablets & small desktops only
 @media (min-width: @screen-tablet) and (max-width: @screen-tablet-max) {
-  .visible-phone    { display: none !important; }
-  .visible-tablet    { display: inherit !important; }
-  .visible-desktop   { display: none !important; }
+  .visible-sm   { display: none !important; }
+  .visible-md   { display: inherit !important; }
+  .visible-lg   { display: none !important; }
 
-  .hidden-phone      { display: inherit !important; }
-  .hidden-tablet     { display: none !important; }
-  .hidden-desktop    { display: inherit !important; }
+  .hidden-sm    { display: inherit !important; }
+  .hidden-md    { display: none !important; }
+  .hidden-lg    { display: inherit !important; }
 }
 
 // For desktops
 @media (min-width: @screen-desktop) {
-  .visible-phone     { display: none !important; }
-  .visible-tablet    { display: none !important; }
-  .visible-desktop   { display: inherit !important; }
+  .visible-sm   { display: none !important; }
+  .visible-md   { display: none !important; }
+  .visible-lg   { display: inherit !important; }
 
-  .hidden-phone      { display: inherit !important; }
-  .hidden-tablet     { display: inherit !important; }
-  .hidden-desktop    { display: none !important; }
+  .hidden-sm    { display: inherit !important; }
+  .hidden-md    { display: inherit !important; }
+  .hidden-lg    { display: none !important; }
 }
 
 // Print utilities
-.visible-print    { display: none !important; }
-.hidden-print     { }
+.visible-print  { display: none !important; }
+.hidden-print   { }
 
 @media print {
   .visible-print  { display: inherit !important; }
diff --git a/less/scaffolding.less b/less/scaffolding.less
index 6781a9582..8c6a5af6c 100644
--- a/less/scaffolding.less
+++ b/less/scaffolding.less
@@ -21,14 +21,6 @@ html {
   -webkit-tap-highlight-color: rgba(0,0,0,0);
 }
 
-// Disable iOS/WinMobile font size changes
-@media screen and (max-device-width: @screen-phone) {
-  html {
-    -webkit-text-size-adjust: 100%;
-        -ms-text-size-adjust: 100%;
-  }
-}
-
 body {
   font-family: @font-family-base;
   font-size: @font-size-base;
diff --git a/less/tables.less b/less/tables.less
index 5c8fe82ad..fa5fd554b 100644
--- a/less/tables.less
+++ b/less/tables.less
@@ -17,7 +17,7 @@ th {
 
 .table {
   width: 100%;
-  margin-bottom: @line-height-base;
+  margin-bottom: @line-height-computed;
   // Cells
   thead > tr > th,
   tbody > tr > th,
diff --git a/less/type.less b/less/type.less
index f6b5eecd5..a95e5bff7 100644
--- a/less/type.less
+++ b/less/type.less
@@ -7,10 +7,10 @@
 // -------------------------
 
 p {
-  margin: 0 0 (@line-height-base / 2);
+  margin: 0 0 (@line-height-computed / 2);
 }
 .lead {
-  margin-bottom: @line-height-base;
+  margin-bottom: @line-height-computed;
   font-size: (@font-size-base * 1.5);
   font-weight: 200;
   line-height: 1.4;
@@ -54,9 +54,8 @@ a.text-success:focus { color: darken(@state-success-text, 10%); }
 
 h1, h2, h3, h4, h5, h6,
 .h1, .h2, .h3, .h4, .h5, .h6 {
-  font-family: @headings-font-family;
   font-weight: @headings-font-weight;
-  line-height: @line-height-base;
+  line-height: @headings-line-height;
   small {
     font-weight: normal;
     line-height: 1;
@@ -67,30 +66,26 @@ h1, h2, h3, h4, h5, h6,
 h1,
 h2,
 h3 {
-  margin-top: @line-height-base;
-  margin-bottom: (@line-height-base / 2);
-  line-height: (@line-height-base * 2);
-}
-h3 {
-  line-height: (@line-height-base * 1.5);
+  margin-top: @line-height-computed;
+  margin-bottom: (@line-height-computed / 2);
 }
 h4,
 h5,
 h6 {
-  margin-top: (@line-height-base / 2);
-  margin-bottom: (@line-height-base / 2);
+  margin-top: (@line-height-computed / 2);
+  margin-bottom: (@line-height-computed / 2);
 }
 
-h1, .h1 { font-size: (@font-size-base * 2.75); } // ~38px
-h2, .h2 { font-size: (@font-size-base * 2.25); } // ~32px
-h3, .h3 { font-size: (@font-size-base * 1.75); } // ~24px
-h4, .h4 { font-size: (@font-size-base * 1.25); } // ~18px
+h1, .h1 { font-size: ceil(@font-size-base * 2.70); } // ~38px
+h2, .h2 { font-size: ceil(@font-size-base * 2.25); } // ~32px
+h3, .h3 { font-size: ceil(@font-size-base * 1.70); } // ~24px
+h4, .h4 { font-size: ceil(@font-size-base * 1.25); } // ~18px
 h5, .h5 { font-size:  @font-size-base; }
-h6, .h6 { font-size: (@font-size-base * 0.85); } // ~12px
+h6, .h6 { font-size: ceil(@font-size-base * 0.85); } // ~12px
 
-h1 small, .h1 small { font-size: (@font-size-base * 1.75); } // ~24px
-h2 small, .h2 small { font-size: (@font-size-base * 1.25); } // ~18px
-h3 small, .h3 small { font-size: @font-size-base; }
+h1 small, .h1 small { font-size: ceil(@font-size-base * 1.70); } // ~24px
+h2 small, .h2 small { font-size: ceil(@font-size-base * 1.25); } // ~18px
+h3 small, .h3 small,
 h4 small, .h4 small { font-size: @font-size-base; }
 
 
@@ -98,8 +93,8 @@ h4 small, .h4 small { font-size: @font-size-base; }
 // -------------------------
 
 .page-header {
-  padding-bottom: ((@line-height-base / 2) - 1);
-  margin: (@line-height-base * 2) 0 @line-height-base;
+  padding-bottom: ((@line-height-computed / 2) - 1);
+  margin: (@line-height-computed * 2) 0 @line-height-computed;
   border-bottom: 1px solid @gray-lighter;
 }
 
@@ -112,7 +107,7 @@ h4 small, .h4 small { font-size: @font-size-base; }
 ul,
 ol {
   padding: 0;
-  margin: 0 0 (@line-height-base / 2) 25px;
+  margin: 0 0 (@line-height-computed / 2) 25px;
 }
 ul ul,
 ul ol,
@@ -143,7 +138,7 @@ li {
 
 // Description Lists
 dl {
-  margin-bottom: @line-height-base;
+  margin-bottom: @line-height-computed;
 }
 dt,
 dd {
@@ -153,7 +148,7 @@ dt {
   font-weight: bold;
 }
 dd {
-  margin-left: (@line-height-base / 2);
+  margin-left: (@line-height-computed / 2);
 }
 // Horizontal layout (like forms)
 .dl-horizontal {
@@ -175,7 +170,7 @@ dd {
 
 // Horizontal rules
 hr {
-  margin: @line-height-base 0;
+  margin: @line-height-computed 0;
   border: 0;
   border-top: 1px solid @hr-border;
   border-bottom: 1px solid #fff;
@@ -196,8 +191,8 @@ abbr.initialism {
 
 // Blockquotes
 blockquote {
-  padding: (@line-height-base/2) @line-height-base;
-  margin: 0 0 @line-height-base;
+  padding: (@line-height-computed / 2) @line-height-computed;
+  margin: 0 0 @line-height-computed;
   border-left: 5px solid @gray-lighter;
   p {
     font-size: (@font-size-base * 1.25);
@@ -249,7 +244,7 @@ blockquote:after {
 // Addresses
 address {
   display: block;
-  margin-bottom: @line-height-base;
+  margin-bottom: @line-height-computed;
   font-style: normal;
   line-height: @line-height-base;
 }
diff --git a/less/variables.less b/less/variables.less
index fd69c2438..9cd8f830b 100644
--- a/less/variables.less
+++ b/less/variables.less
@@ -46,27 +46,33 @@
 @font-family-base:        @font-family-sans-serif;
 
 @font-size-base:          14px;
-@font-size-large:         (@font-size-base * 1.25); // ~18px
-@font-size-small:         (@font-size-base * 0.85); // ~12px
-@font-size-mini:          (@font-size-base * 0.75); // ~11px
+@font-size-large:         ceil(@font-size-base * 1.25); // ~18px
+@font-size-small:         ceil(@font-size-base * 0.85); // ~12px
+@font-size-mini:          ceil(@font-size-base * 0.75); // ~11px
 
-@line-height-base:        20px;
+@line-height-base:        1.428571429; // 20/14
+@line-height-computed:    floor(@font-size-base * @line-height-base); // ~20px
 
-@headings-font-family:    inherit; // empty to use BS default, @font-family-base
 @headings-font-weight:    500;
+@headings-line-height:    1.1;
 
 
 // Components
 // -------------------------
-// Based on 14px font-size and 1.5 line-height
+// Based on 14px font-size and 1.428 line-height (~20px to start)
 
-@padding-large:           11px 14px; // 44px
-@padding-small:           2px 10px;  // 26px
-@padding-mini:            0 6px;   // 22px
+@padding-base-vertical:          8px;
+@padding-base-horizontal:        12px;
 
-@border-radius-base:      4px;
-@border-radius-large:     6px;
-@border-radius-small:     3px;
+@padding-large-vertical:         14px;
+@padding-large-horizontal:       16px;
+
+@padding-small-vertical:         5px;
+@padding-small-horizontal:       10px;
+
+@border-radius-base:             4px;
+@border-radius-large:            6px;
+@border-radius-small:            3px;
 
 @component-active-bg:            @brand-primary;
 
@@ -121,11 +127,11 @@
 
 @input-color-placeholder:        @gray-light;
 
-@input-height-base:              (@line-height-base + 14px); // base line-height + 12px vertical padding + 2px top/bottom border
-@input-height-large:             (@line-height-base + 24px); // base line-height + 22px vertical padding + 2px top/bottom border
-@input-height-small:             (@line-height-base + 6px);  // base line-height + 4px vertical padding + 2px top/bottom border
+@input-height-base:              (@line-height-computed + (@padding-base-vertical * 2));
+@input-height-large:             (@line-height-computed + (@padding-large-vertical * 2));
+@input-height-small:             (@line-height-computed + (@padding-small-vertical * 2));
 
-@form-actions-bg:                 #f5f5f5;
+@form-actions-bg:                #f5f5f5;
 
 
 // Dropdowns
@@ -329,6 +335,7 @@
 @panel-border:                #ddd;
 @panel-border-radius:         @border-radius-base;
 @panel-heading-bg:            #f5f5f5;
+@panel-footer-bg:             #f5f5f5;
 
 @panel-primary-text:          #fff;
 @panel-primary-border:        @brand-primary;