Merge branch 'v4-dev' into yiq-function-update

17 files changed, 411 insertions, 297 deletions

diff --git a/docs/4.0/examples/index.md b/docs/4.0/examples/index.md
index 344d5be30..8546a8698 100644
--- a/docs/4.0/examples/index.md
+++ b/docs/4.0/examples/index.md
@@ -14,14 +14,14 @@ Examples that focus on implementing uses of built-in components provided by Boot
 <div class="row bd-examples">
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/starter-template/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/starter-template.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/starter-template.jpg" alt="" width="800" height="600">
       <h4>Starter template</h4>
     </a>
     <p>Nothing but the basics: compiled CSS and JavaScript.</p>
   </div>
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/grid/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/grid.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/grid.jpg" alt="" width="800" height="600">
       <h4>Grids</h4>
     </a>
     <p>Multiple examples of grid layouts with all four tiers, nesting, and more.</p>
@@ -30,14 +30,14 @@ Examples that focus on implementing uses of built-in components provided by Boot
 
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/jumbotron/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/jumbotron.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/jumbotron.jpg" alt="" width="800" height="600">
       <h4>Jumbotron</h4>
     </a>
     <p>Build around the jumbotron with a navbar and some basic grid columns.</p>
   </div>
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/narrow-jumbotron/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/jumbotron-narrow.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/jumbotron-narrow.jpg" alt="" width="800" height="600">
       <h4>Narrow jumbotron</h4>
     </a>
     <p>Build a more custom page by narrowing the default container and jumbotron.</p>
@@ -51,14 +51,14 @@ Taking the default navbar component and showing how it can be moved, placed, and
 <div class="row bd-examples">
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/navbars/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/navbar.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/navbar.jpg" alt="" width="800" height="600">
       <h4>Navbar</h4>
     </a>
     <p>Super basic template that includes the navbar along with some additional content.</p>
   </div>
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/navbar-top/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/navbar-static.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/navbar-static.jpg" alt="" width="800" height="600">
       <h4>Static top navbar</h4>
     </a>
     <p>Super basic template with a static top navbar along with some additional content.</p>
@@ -67,11 +67,18 @@ Taking the default navbar component and showing how it can be moved, placed, and
 
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/navbar-top-fixed/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/navbar-fixed.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/navbar-fixed.jpg" alt="" width="800" height="600">
       <h4>Fixed navbar</h4>
     </a>
     <p>Super basic template with a fixed top navbar along with some additional content.</p>
   </div>
+  <div class="col-6 col-md-4">
+    <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/navbar-bottom/">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/navbar-bottom.jpg" alt="">
+      <h4>Bottom navbar</h4>
+    </a>
+    <p>Super basic template with a bottom navbar along with some additional content.</p>
+  </div>
 </div>
 
 ## Custom components
@@ -81,14 +88,14 @@ Brand new components and templates to help folks quickly get started with Bootst
 <div class="row bd-examples">
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/album/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/album.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/album.jpg" alt="" width="800" height="600">
       <h4>Album</h4>
     </a>
     <p>Simple one-page template for photo galleries, portfolios, and more.</p>
   </div>
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/cover/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/cover.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/cover.jpg" alt="" width="800" height="600">
       <h4>Cover</h4>
     </a>
     <p>A one-page template for building simple and beautiful home pages.</p>
@@ -97,14 +104,14 @@ Brand new components and templates to help folks quickly get started with Bootst
 
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/carousel/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/carousel.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/carousel.jpg" alt="" width="800" height="600">
       <h4>Carousel</h4>
     </a>
     <p>Customize the navbar and carousel, then add some new components.</p>
   </div>
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/blog/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/blog.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/blog.jpg" alt="" width="800" height="600">
       <h4>Blog</h4>
     </a>
     <p>Simple two-column blog layout with custom navigation, header, and type.</p>
@@ -113,14 +120,14 @@ Brand new components and templates to help folks quickly get started with Bootst
 
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/dashboard/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/dashboard.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/dashboard.jpg" alt="" width="800" height="600">
       <h4>Dashboard</h4>
     </a>
     <p>Basic admin dashboard shell with fixed sidebar and navbar.</p>
   </div>
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/signin/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/sign-in.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/sign-in.jpg" alt="" width="800" height="600">
       <h4>Sign-in page</h4>
     </a>
     <p>Custom form layout and design for a simple sign in form.</p>
@@ -129,14 +136,14 @@ Brand new components and templates to help folks quickly get started with Bootst
 
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/justified-nav/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/justified-nav.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/justified-nav.jpg" alt="" width="800" height="600">
       <h4>Justified nav</h4>
     </a>
     <p>Create a custom navbar with justified links. Heads up! Not too Safari friendly.</p>
   </div>
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/sticky-footer/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/sticky-footer.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/sticky-footer.jpg" alt="" width="800" height="600">
       <h4>Sticky footer</h4>
     </a>
     <p>Attach a footer to the bottom of the viewport when the content is shorter than it.</p>
@@ -145,7 +152,7 @@ Brand new components and templates to help folks quickly get started with Bootst
 
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/sticky-footer-navbar/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/sticky-footer-navbar.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/sticky-footer-navbar.jpg" alt="" width="800" height="600">
       <h4>Sticky footer w/ navbar</h4>
     </a>
     <p>Attach a footer to the bottom of the viewport with a fixed top navbar.</p>
@@ -159,7 +166,7 @@ Examples that focus on future-friendly features or techniques.
 <div class="row bd-examples">
   <div class="col-6 col-md-4">
     <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/offcanvas/">
-      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/offcanvas.jpg" alt="">
+      <img class="img-thumbnail" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/screenshots/offcanvas.jpg" alt="" width="800" height="600">
       <h4>Offcanvas</h4>
     </a>
     <p>Build a toggleable off-canvas navigation menu for use with Bootstrap.</p>
diff --git a/docs/4.0/examples/navbar-bottom/index.html b/docs/4.0/examples/navbar-bottom/index.html
new file mode 100644
index 000000000..3046f9b9b
--- /dev/null
+++ b/docs/4.0/examples/navbar-bottom/index.html
@@ -0,0 +1,60 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+    <meta name="description" content="">
+    <meta name="author" content="">
+    <link rel="icon" href="../../../../favicon.ico">
+
+    <title>Bottom navbar example for Bootstrap</title>
+
+    <!-- Bootstrap core CSS -->
+    <link href="../../../../dist/css/bootstrap.min.css" rel="stylesheet">
+  </head>
+
+  <body>
+    <div class="container">
+      <div class="jumbotron mt-3">
+        <h1>Bottom Navbar example</h1>
+        <p class="lead">This example is a quick exercise to illustrate how the bottom navbar works.</p>
+        <a class="btn btn-lg btn-primary" href="../../components/navbar/" role="button">View navbar docs &raquo;</a>
+      </div>
+    </div>
+    <nav class="navbar fixed-bottom navbar-expand navbar-dark bg-dark">
+      <a class="navbar-brand" href="#">Bottom navbar</a>
+      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
+        <span class="navbar-toggler-icon"></span>
+      </button>
+      <div class="collapse navbar-collapse" id="navbarCollapse">
+        <ul class="navbar-nav mr-auto">
+          <li class="nav-item active">
+            <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
+          </li>
+          <li class="nav-item">
+            <a class="nav-link" href="#">Link</a>
+          </li>
+          <li class="nav-item">
+            <a class="nav-link disabled" href="#">Disabled</a>
+          </li>
+          <li class="nav-item dropup">
+            <a class="nav-link dropdown-toggle" href="https://getbootstrap.com" id="dropdown10" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropup</a>
+            <div class="dropdown-menu" aria-labelledby="dropdown10">
+              <a class="dropdown-item" href="#">Action</a>
+              <a class="dropdown-item" href="#">Another action</a>
+              <a class="dropdown-item" href="#">Something else here</a>
+            </div>
+          </li>
+        </ul>
+      </div>
+    </nav>
+
+    <!-- Bootstrap core JavaScript
+    ================================================== -->
+    <!-- Placed at the end of the document so the pages load faster -->
+    <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
+    <script>window.jQuery || document.write('<script src="../../../../assets/js/vendor/jquery.min.js"><\/script>')</script>
+    <script src="../../../../assets/js/vendor/popper.min.js"></script>
+    <script src="../../../../dist/js/bootstrap.min.js"></script>
+  </body>
+</html>
diff --git a/docs/4.0/examples/screenshots/navbar-bottom.jpg b/docs/4.0/examples/screenshots/navbar-bottom.jpg
new file mode 100644
index 000000000..c25c2f89c
--- /dev/null
+++ b/docs/4.0/examples/screenshots/navbar-bottom.jpg
diff --git a/js/src/alert.js b/js/src/alert.js
index 9fcf088b1..9d6c498b9 100644
--- a/js/src/alert.js
+++ b/js/src/alert.js
@@ -189,6 +189,6 @@ const Alert = (() => {
 
   return Alert
 
-})(jQuery)
+})($)
 
 export default Alert
diff --git a/js/src/button.js b/js/src/button.js
index a121b8e13..7bf5e87dd 100644
--- a/js/src/button.js
+++ b/js/src/button.js
@@ -182,6 +182,6 @@ const Button = (() => {
 
   return Button
 
-})(jQuery)
+})($)
 
 export default Button
diff --git a/js/src/carousel.js b/js/src/carousel.js
index a5ad02541..3a6d7a4bc 100644
--- a/js/src/carousel.js
+++ b/js/src/carousel.js
@@ -519,6 +519,6 @@ const Carousel = (() => {
 
   return Carousel
 
-})(jQuery)
+})($)
 
 export default Carousel
diff --git a/js/src/collapse.js b/js/src/collapse.js
index fa082f133..d29e48722 100644
--- a/js/src/collapse.js
+++ b/js/src/collapse.js
@@ -404,6 +404,6 @@ const Collapse = (() => {
 
   return Collapse
 
-})(jQuery)
+})($)
 
 export default Collapse
diff --git a/js/src/dropdown.js b/js/src/dropdown.js
index 6681df668..3a910996b 100644
--- a/js/src/dropdown.js
+++ b/js/src/dropdown.js
@@ -445,6 +445,6 @@ const Dropdown = (() => {
 
   return Dropdown
 
-})(jQuery, Popper)
+})($, Popper)
 
 export default Dropdown
diff --git a/js/src/index.js b/js/src/index.js
index 84a27880e..2629e507f 100644
--- a/js/src/index.js
+++ b/js/src/index.js
@@ -19,7 +19,7 @@ import Util from './util'
  */
 
 (() => {
-  if (typeof jQuery === 'undefined') {
+  if (typeof $ === 'undefined') {
     throw new Error('Bootstrap\'s JavaScript requires jQuery. jQuery must be included before Bootstrap\'s JavaScript.')
   }
 
@@ -29,7 +29,7 @@ import Util from './util'
   if (version[0] < min || version[0] >= max) {
     throw new Error('Bootstrap\'s JavaScript requires at least jQuery v3.0.0 but less than v4.0.0')
   }
-})(jQuery)
+})($)
 
 export {
   Util,
diff --git a/js/src/modal.js b/js/src/modal.js
index 689e93bc1..fb787208d 100644
--- a/js/src/modal.js
+++ b/js/src/modal.js
@@ -585,6 +585,6 @@ const Modal = (() => {
 
   return Modal
 
-})(jQuery)
+})($)
 
 export default Modal
diff --git a/js/src/popover.js b/js/src/popover.js
index aeccdf750..89c78f4fe 100644
--- a/js/src/popover.js
+++ b/js/src/popover.js
@@ -189,6 +189,6 @@ const Popover = (() => {
 
   return Popover
 
-})(jQuery)
+})($)
 
 export default Popover
diff --git a/js/src/scrollspy.js b/js/src/scrollspy.js
index e8f0d3101..c844bd530 100644
--- a/js/src/scrollspy.js
+++ b/js/src/scrollspy.js
@@ -335,6 +335,6 @@ const ScrollSpy = (() => {
 
   return ScrollSpy
 
-})(jQuery)
+})($)
 
 export default ScrollSpy
diff --git a/js/src/tab.js b/js/src/tab.js
index 2a554c287..17699dfbe 100644
--- a/js/src/tab.js
+++ b/js/src/tab.js
@@ -282,6 +282,6 @@ const Tab = (() => {
 
   return Tab
 
-})(jQuery)
+})($)
 
 export default Tab
diff --git a/js/src/tooltip.js b/js/src/tooltip.js
index ca7e52b14..8d262f4ad 100644
--- a/js/src/tooltip.js
+++ b/js/src/tooltip.js
@@ -728,6 +728,6 @@ const Tooltip = (() => {
 
   return Tooltip
 
-})(jQuery, Popper)
+})($, Popper)
 
 export default Tooltip
diff --git a/js/src/util.js b/js/src/util.js
index 7eb25de55..a75660014 100644
--- a/js/src/util.js
+++ b/js/src/util.js
@@ -161,6 +161,6 @@ const Util = (() => {
 
   return Util
 
-})(jQuery)
+})($)
 
 export default Util
diff --git a/package-lock.json b/package-lock.json
index 7bcfbf507..4fec5a068 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "abbrev": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.0.tgz",
-      "integrity": "sha1-0FVMIlZjbi9W58LlrRg/hZQo2B8=",
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
+      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==",
       "dev": true
     },
     "acorn": {
@@ -243,7 +243,7 @@
       "dev": true,
       "requires": {
         "browserslist": "2.4.0",
-        "caniuse-lite": "1.0.30000738",
+        "caniuse-lite": "1.0.30000743",
         "normalize-range": "0.1.2",
         "num2fraction": "1.2.2",
         "postcss": "6.0.12",
@@ -1221,8 +1221,8 @@
       "integrity": "sha512-aM2Gt4x9bVlCUteADBS6JP0F+2tMWKM1jQzUulVROtdFWFIcIVvY76AJbr7GDqy0eDhn+PcnpzzivGxY4qiaKQ==",
       "dev": true,
       "requires": {
-        "caniuse-lite": "1.0.30000738",
-        "electron-to-chromium": "1.3.22"
+        "caniuse-lite": "1.0.30000743",
+        "electron-to-chromium": "1.3.24"
       }
     },
     "builtin-modules": {
@@ -1255,56 +1255,6 @@
         "gzip-size": "3.0.0",
         "prettycli": "1.4.3",
         "read-pkg-up": "2.0.0"
-      },
-      "dependencies": {
-        "load-json-file": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz",
-          "integrity": "sha1-eUfkIUmvgNaWy/eXvKq8/h/inKg=",
-          "dev": true,
-          "requires": {
-            "graceful-fs": "4.1.11",
-            "parse-json": "2.2.0",
-            "pify": "2.3.0",
-            "strip-bom": "3.0.0"
-          }
-        },
-        "path-type": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/path-type/-/path-type-2.0.0.tgz",
-          "integrity": "sha1-8BLMuEFbcJb8LaoQVMPXI4lZTHM=",
-          "dev": true,
-          "requires": {
-            "pify": "2.3.0"
-          }
-        },
-        "read-pkg": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-2.0.0.tgz",
-          "integrity": "sha1-jvHAYjxqbbDcZxPEv6xGMysjaPg=",
-          "dev": true,
-          "requires": {
-            "load-json-file": "2.0.0",
-            "normalize-package-data": "2.4.0",
-            "path-type": "2.0.0"
-          }
-        },
-        "read-pkg-up": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-2.0.0.tgz",
-          "integrity": "sha1-a3KoBImE4MQeeVEP1en6mbO1Sb4=",
-          "dev": true,
-          "requires": {
-            "find-up": "2.1.0",
-            "read-pkg": "2.0.0"
-          }
-        },
-        "strip-bom": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-3.0.0.tgz",
-          "integrity": "sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM=",
-          "dev": true
-        }
       }
     },
     "bytes": {
@@ -1329,9 +1279,9 @@
       "dev": true
     },
     "camelcase": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-2.1.1.tgz",
-      "integrity": "sha1-fB0W1nmhu+WcoCys7PsBHiAfWh8=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-3.0.0.tgz",
+      "integrity": "sha1-MvxLn82vhF/N9+c7uXysImHwqwo=",
       "dev": true
     },
     "camelcase-keys": {
@@ -1342,6 +1292,14 @@
       "requires": {
         "camelcase": "2.1.1",
         "map-obj": "1.0.1"
+      },
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+          "requires": {
+            "load-json-file": "1.1.0",
+            "normalize-package-data": "2.4.0",
+            "path-type": "1.1.0"
+          }
+        },
+        "read-pkg-up": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-1.0.1.tgz",
+          "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
+          "dev": true,
+          "requires": {
+            "find-up": "1.1.2",
+            "read-pkg": "1.1.0"
+          }
+        },
         "string-width": {
           "version": "1.0.2",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
@@ -6021,6 +5984,15 @@
             "ansi-regex": "2.1.1"
           }
         },
+        "strip-bom": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-2.0.0.tgz",
+          "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
+          "dev": true,
+          "requires": {
+            "is-utf8": "0.2.1"
+          }
+        },
         "yargs": {
           "version": "7.1.0",
           "resolved": "https://registry.npmjs.org/yargs/-/yargs-7.1.0.tgz",
@@ -6352,7 +6324,7 @@
       "dev": true,
       "requires": {
         "define-properties": "1.1.2",
-        "es-abstract": "1.8.2",
+        "es-abstract": "1.9.0",
         "function-bind": "1.1.1"
       }
     },
@@ -6380,13 +6352,10 @@
       }
     },
     "strip-bom": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-2.0.0.tgz",
-      "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
-      "dev": true,
-      "requires": {
-        "is-utf8": "0.2.1"
-      }
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-3.0.0.tgz",
+      "integrity": "sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM=",
+      "dev": true
     },
     "strip-eof": {
       "version": "1.0.0",
@@ -6443,7 +6412,7 @@
         "normalize-selector": "0.2.0",
         "pify": "3.0.0",
         "postcss": "6.0.12",
-        "postcss-less": "1.1.0",
+        "postcss-less": "1.1.1",
         "postcss-media-query-parser": "0.2.3",
         "postcss-reporter": "5.0.0",
         "postcss-resolve-nested-selector": "0.1.1",
@@ -6669,7 +6638,7 @@
           "integrity": "sha1-bd0hvSoxQXuScn3Vhfim83YI6+4=",
           "dev": true,
           "requires": {
-            "abbrev": "1.1.0"
+            "abbrev": "1.1.1"
           }
         }
       }
@@ -6733,9 +6702,9 @@
       "dev": true
     },
     "uglify-js": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.1.2.tgz",
-      "integrity": "sha512-kKJ8zg7Ivw3DG9Ytgp4+iiSHq3HaHjEQMvyT2x2Bs8kSUwVemj6bPGFp6YWL81f5NAIOLVUKPxBSvqLRGXMpdw==",
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.1.3.tgz",
+      "integrity": "sha512-5ZUOgufCHjN2mBBLfz63UtWTP6va2sSzBpNCM+/iqI6RnPzEhANmB0EKiKBYdQbc3v7KeomXJ2DJx0Xq9gvUvA==",
       "dev": true,
       "requires": {
         "commander": "2.11.0",
@@ -7196,11 +7165,15 @@
         "yargs-parser": "4.2.1"
       },
       "dependencies": {
-        "camelcase": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-3.0.0.tgz",
-          "integrity": "sha1-MvxLn82vhF/N9+c7uXysImHwqwo=",
-          "dev": true
+        "find-up": {
+          "version": "1.1.2",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-1.1.2.tgz",
+          "integrity": "sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=",
+          "dev": true,
+          "requires": {
+            "path-exists": "2.1.0",
+            "pinkie-promise": "2.0.1"
+          }
         },
         "is-fullwidth-code-point": {
           "version": "1.0.0",
@@ -7211,6 +7184,60 @@
             "number-is-nan": "1.0.1"
           }
         },
+        "load-json-file": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-1.1.0.tgz",
+          "integrity": "sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=",
+          "dev": true,
+          "requires": {
+            "graceful-fs": "4.1.11",
+            "parse-json": "2.2.0",
+            "pify": "2.3.0",
+            "pinkie-promise": "2.0.1",
+            "strip-bom": "2.0.0"
+          }
+        },
+        "path-exists": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-2.1.0.tgz",
+          "integrity": "sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=",
+          "dev": true,
+          "requires": {
+            "pinkie-promise": "2.0.1"
+          }
+        },
+        "path-type": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/path-type/-/path-type-1.1.0.tgz",
+          "integrity": "sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=",
+          "dev": true,
+          "requires": {
+            "graceful-fs": "4.1.11",
+            "pify": "2.3.0",
+            "pinkie-promise": "2.0.1"
+          }
+        },
+        "read-pkg": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-1.1.0.tgz",
+          "integrity": "sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=",
+          "dev": true,
+          "requires": {
+            "load-json-file": "1.1.0",
+            "normalize-package-data": "2.4.0",
+            "path-type": "1.1.0"
+          }
+        },
+        "read-pkg-up": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-1.0.1.tgz",
+          "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
+          "dev": true,
+          "requires": {
+            "find-up": "1.1.2",
+            "read-pkg": "1.1.0"
+          }
+        },
         "string-width": {
           "version": "1.0.2",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
@@ -7230,6 +7257,15 @@
           "requires": {
             "ansi-regex": "2.1.1"
           }
+        },
+        "strip-bom": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-2.0.0.tgz",
+          "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
+          "dev": true,
+          "requires": {
+            "is-utf8": "0.2.1"
+          }
         }
       }
     },
@@ -7240,14 +7276,6 @@
       "dev": true,
       "requires": {
         "camelcase": "3.0.0"
-      },
-      "dependencies": {
-        "camelcase": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-3.0.0.tgz",
-          "integrity": "sha1-MvxLn82vhF/N9+c7uXysImHwqwo=",
-          "dev": true
-        }
       }
     },
     "yauzl": {
diff --git a/scss/_navbar.scss b/scss/_navbar.scss
index 1398400c0..a0ccc06fb 100644
--- a/scss/_navbar.scss
+++ b/scss/_navbar.scss
@@ -74,6 +74,13 @@
     position: static;
     float: none;
   }
+
+  .dropdown-toggle {
+    &::after {
+      border-top: $caret-width solid;
+      border-bottom: 0;
+    }
+  }
 }
 
 
@@ -144,6 +151,18 @@
           padding-right: 0;
           padding-left: 0;
         }
+
+        .dropup {
+          .dropdown-menu {
+            position: absolute;
+            top: auto;
+            bottom: 100%;
+          }
+
+          .dropdown-toggle {
+            @include caret(up);
+          }
+        }
       }
 
       @include media-breakpoint-up($next) {