14 files changed, 64 insertions, 54 deletions
diff --git a/_includes/ads.html b/_includes/ads.html
index 662b62971..10df1344d 100644
--- a/_includes/ads.html
+++ b/_includes/ads.html
@@ -1 +1 @@
-<script async type="text/javascript" src="https://cdn.carbonads.com/carbon.js?zoneid=1673&serve=C6AILKT&placement=getbootstrapcom" id="_carbonads_js"></script>
+<script async src="https://cdn.carbonads.com/carbon.js?zoneid=1673&serve=C6AILKT&placement=getbootstrapcom" id="_carbonads_js"></script>
diff --git a/_includes/callout-danger-async-methods.md b/_includes/callout-danger-async-methods.md
index 809643e1d..89d2e2cab 100644
--- a/_includes/callout-danger-async-methods.md
+++ b/_includes/callout-danger-async-methods.md
@@ -1,7 +1,7 @@
 {% callout danger %}
 #### Asynchronous methods and transitions
 
-All API methods are **asynchronous** and start a **transition**. They returns to the caller as soon as the transition is started but **before it ends**. In addition, a method call on a **transitioning component will be ignored**.
+All API methods are **asynchronous** and start a **transition**. They return to the caller as soon as the transition is started but **before it ends**. In addition, a method call on a **transitioning component will be ignored**.
 
-[See our Javascript documentation for more informations.]({{ site.baseurl }}/getting-started/javascript/)
+[See our JavaScript documentation for more information.]({{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/javascript/)
 {% endcallout %}
diff --git a/_includes/callout-warning-color-assistive-technologies.md b/_includes/callout-warning-color-assistive-technologies.md
index b92a1c341..0b929e16d 100644
--- a/_includes/callout-warning-color-assistive-technologies.md
+++ b/_includes/callout-warning-color-assistive-technologies.md
@@ -2,4 +2,4 @@
 #### Conveying meaning to assistive technologies
 
 Using color to add meaning only provides a visual indication, which will not be conveyed to users of assistive technologies – such as screen readers. Ensure that information denoted by the color is either obvious from the content itself (e.g. the visible text), or is included through alternative means, such as additional text hidden with the `.sr-only` class.
-{% endcallout %}
-\ No newline at end of file
+{% endcallout %}
diff --git a/_includes/docs-navbar.html b/_includes/docs-navbar.html
index 8d62d4585..76435bab7 100644
--- a/_includes/docs-navbar.html
+++ b/_includes/docs-navbar.html
@@ -36,8 +36,8 @@
       </a>
       <div class="dropdown-menu dropdown-menu-right" aria-labelledby="bd-versions">
         <a class="dropdown-item active" href="{{ site.baseurl }}/docs/{{ site.docs_version }}/">Latest (4.x)</a>
-        <a class="dropdown-item" href="https://v4-alpha.getbootstrap.com">v4 Alpha 6</a>
-        <a class="dropdown-item" href="https://getbootstrap.com/3.3.7/">v3.3.7</a>
+        <a class="dropdown-item" href="https://v4-alpha.getbootstrap.com/">v4 Alpha 6</a>
+        <a class="dropdown-item" href="https://getbootstrap.com/3.3/">v3.3.7</a>
         <a class="dropdown-item" href="https://getbootstrap.com/2.3.2/">v2.3.2</a>
       </div>
     </li>
diff --git a/_includes/docs-sidebar.html b/_includes/docs-sidebar.html
index 71ea14f7d..d23e033b6 100644
--- a/_includes/docs-sidebar.html
+++ b/_includes/docs-sidebar.html
@@ -1,37 +1,37 @@
 <form class="bd-search d-flex align-items-center">
   <input type="search" class="form-control" id="search-input" placeholder="Search..." aria-label="Search for..." autocomplete="off">
-  <button class="btn-link bd-search-docs-toggle d-md-none p-0 ml-3" type="button" data-toggle="collapse" data-target="#bd-docs-nav" aria-controls="bd-docs-nav" aria-expanded="false" aria-label="Toggle docs avigation">
+  <button class="btn btn-link bd-search-docs-toggle d-md-none p-0 ml-3" type="button" data-toggle="collapse" data-target="#bd-docs-nav" aria-controls="bd-docs-nav" aria-expanded="false" aria-label="Toggle docs navigation">
     {% include icons/menu.svg class="" width="30" height="30" %}
   </button>
 </form>
 
 <nav class="collapse bd-links" id="bd-docs-nav">
-  {% assign page_slug = page.url | split: '/' | last %}
-  {% for group in site.data.nav %}
-  {% assign link = group.pages | first %}
-  {% assign link_slug = link.title | slugify %}
-  {% assign group_slug = group.title | slugify %}
-  {% assign active = nil %}
+  {%- assign page_slug = page.url | split: '/' | last -%}
+  {%- for group in site.data.nav -%}
+  {%- assign link = group.pages | first -%}
+  {%- assign link_slug = link.title | slugify -%}
+  {%- assign group_slug = group.title | slugify -%}
+  {%- assign active = nil -%}
 
-  {% if page.group == group_slug %}
-    {% assign active = 'active' %}
-  {% endif %}
+  {%- if page.group == group_slug -%}
+    {%- assign active = 'active' -%}
+  {%- endif -%}
 
-  <div class="bd-toc-item {{ active }}">
+  <div class="bd-toc-item{% unless active == nil %} {{ active }}{% endunless %}">
       <a class="bd-toc-link" href="{{ site.baseurl }}/docs/{{ site.docs_version }}/{{ group_slug }}/{{ link_slug }}{% if link_slug %}/{% endif %}">
         {{ group.title }}
       </a>
 
       <ul class="nav bd-sidenav">
-        {% for doc in group.pages %}
-          {% assign doc_slug = doc.title | slugify %}
-          {% assign active = nil %}
+        {%- for doc in group.pages -%}
+          {%- assign doc_slug = doc.title | slugify -%}
+          {%- assign active = nil -%}
 
-          {% if page.group == group_slug and page_slug == doc_slug %}
-            {% assign active = 'active bd-sidenav-active' %}
-          {% endif %}
+          {%- if page.group == group_slug and page_slug == doc_slug -%}
+            {%- assign active = 'active bd-sidenav-active' -%}
+          {%- endif -%}
 
-          <li class="{{ active }}">
+          <li{% unless active == nil %} class="{{ active }}"{% endunless %}>
             <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/{{ group_slug }}/{{ doc_slug }}/">
               {{ doc.title }}
             </a>
@@ -50,8 +50,8 @@
             {% endunless %}
             {% endcomment %}
           </li>
-        {% endfor %}
+        {%- endfor -%}
       </ul>
     </div>
-  {% endfor %}
+  {%- endfor -%}
 </nav>
diff --git a/_includes/favicons.html b/_includes/favicons.html
new file mode 100644
index 000000000..97dab4ba8
--- /dev/null
+++ b/_includes/favicons.html
@@ -0,0 +1,9 @@
+<!-- Favicons -->
+<link rel="apple-touch-icon" href="{{ site.baseurl }}/assets/img/favicons/apple-touch-icon.png" sizes="180x180">
+<link rel="icon" href="{{ site.baseurl }}/assets/img/favicons/favicon-32x32.png" sizes="32x32" type="image/png">
+<link rel="icon" href="{{ site.baseurl }}/assets/img/favicons/favicon-16x16.png" sizes="16x16" type="image/png">
+<link rel="manifest" href="{{ site.baseurl }}/assets/img/favicons/manifest.json">
+<link rel="mask-icon" href="{{ site.baseurl }}/assets/img/favicons/safari-pinned-tab.svg" color="#563d7c">
+<link rel="icon" href="{{ site.baseurl }}/favicon.ico">
+<meta name="msapplication-config" content="{{ site.baseurl }}/assets/img/favicons/browserconfig.xml">
+<meta name="theme-color" content="#563d7c">
diff --git a/_includes/footer.html b/_includes/footer.html
index 968d42954..c41c83578 100644
--- a/_includes/footer.html
+++ b/_includes/footer.html
@@ -1,10 +1,10 @@
 <footer class="bd-footer text-muted">
-  <div class="container">
+  <div class="container-fluid p-3 p-md-5">
     <ul class="bd-footer-links">
       <li><a href="{{ site.repo }}">GitHub</a></li>
       <li><a href="https://twitter.com/getbootstrap">Twitter</a></li>
-      <li><a href="{{ site.baseurl }}/examples/">Examples</a></li>
-      <li><a href="{{ site.baseurl }}/about/history/">About</a></li>
+      <li><a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/">Examples</a></li>
+      <li><a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/about/">About</a></li>
     </ul>
     <p>Designed and built with all the love in the world by <a href="https://twitter.com/mdo" target="_blank" rel="noopener">@mdo</a> and <a href="https://twitter.com/fat" target="_blank" rel="noopener">@fat</a>. Maintained by the <a href="https://github.com/orgs/twbs/people">core team</a> with the help of <a href="https://github.com/twbs/bootstrap/graphs/contributors">our contributors</a>.</p>
     <p>Currently v{{ site.current_version }}. Code licensed <a rel="license noopener" href="https://github.com/twbs/bootstrap/blob/master/LICENSE" target="_blank">MIT</a>, docs <a rel="license noopener" href="https://creativecommons.org/licenses/by/3.0/" target="_blank">CC BY 3.0</a>.</p>
diff --git a/_includes/header.html b/_includes/header.html
index fd9a9a28c..048867bdd 100644
--- a/_includes/header.html
+++ b/_includes/header.html
@@ -1,16 +1,15 @@
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+<meta name="generator" content="Jekyll v{{ jekyll.version }}">
 
 <title>
-  {% if page.title %}
+  {%- if page.title -%}
     {{ page.title }} &middot; {{ site.title }}
-  {% else %}
+  {%- else -%}
     {{ site.title }} &middot; {{ site.description }}
-  {% endif %}
+  {%- endif -%}
 </title>
 
-{% include social.html %}
-
 <!-- Bootstrap core CSS -->
 {% if site.github %}
   <link href="{{ site.baseurl }}/dist/css/bootstrap.min.css" rel="stylesheet">
@@ -20,13 +19,13 @@
 
 <!-- Documentation extras -->
 {% if page.layout == "docs" %}
-<link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/2/docsearch.min.css" />
+<link href="https://cdn.jsdelivr.net/docsearch.js/2/docsearch.min.css" rel="stylesheet">
 {% endif %}
 <link href="{{ site.baseurl }}/assets/css/docs.min.css" rel="stylesheet">
 
-<!-- Favicons -->
-<link rel="apple-touch-icon" href="{{ site.baseurl }}/apple-touch-icon.png">
-<link rel="icon" href="{{ site.baseurl }}/favicon.ico">
+{% include favicons.html %}
+
+{% include social.html %}
 
 <script>
   (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
diff --git a/_includes/icons/bootstrap.svg b/_includes/icons/bootstrap.svg
index ce8df7738..816028bd8 100644
--- a/_includes/icons/bootstrap.svg
+++ b/_includes/icons/bootstrap.svg
@@ -1 +1 @@
-<svg {% if include.class %} class="{{ include.class }}"{% endif %}{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
+<svg{% if include.class %} class="{{ include.class }}"{% endif %}{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
diff --git a/_includes/icons/download.svg b/_includes/icons/download.svg
new file mode 100644
index 000000000..aa5f3f1be
--- /dev/null
+++ b/_includes/icons/download.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" focusable="false"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} fill="none" stroke="currentcolor" stroke-width="2"{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 32 32" stroke-linecap="round" stroke-linejoin="round"><title>Download icon</title><path d="M9 22c-9 1-8-10 0-9C6 2 23 2 22 10c10-3 10 13 1 12m-12 4l5 4 5-4m-5-10v14"/></svg>
diff --git a/_includes/icons/import.svg b/_includes/icons/import.svg
new file mode 100644
index 000000000..72a4b603b
--- /dev/null
+++ b/_includes/icons/import.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" focusable="false"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} fill="none" stroke="currentcolor" stroke-width="2"{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 32 32" stroke-linecap="round" stroke-linejoin="round"><title>Import icon</title><path d="M18 13l8-11L8 13l6 6-8 11 18-11z"/></svg>
diff --git a/_includes/icons/lightning.svg b/_includes/icons/lightning.svg
new file mode 100644
index 000000000..be6f475ef
--- /dev/null
+++ b/_includes/icons/lightning.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" focusable="false"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} fill="none" stroke="currentcolor" stroke-width="2"{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 32 32" stroke-linecap="round" stroke-linejoin="round"><title>Lightning icon</title><path d="M18 13l8-11L8 13l6 6-8 11 18-11z"/></svg>
diff --git a/_includes/scripts.html b/_includes/scripts.html
index da73fdd68..0af5f5c69 100644
--- a/_includes/scripts.html
+++ b/_includes/scripts.html
@@ -16,16 +16,15 @@
   <script src="{{ site.baseurl }}/assets/js/vendor/clipboard.min.js"></script>
   <script src="{{ site.baseurl }}/assets/js/vendor/holder.min.js"></script>
   <script src="{{ site.baseurl }}/assets/js/src/application.js"></script>
+  <script src="{{ site.baseurl }}/assets/js/src/pwa.js"></script>
 {% endif %}
 
-<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
-<script src="{{ site.baseurl }}/assets/js/ie10-viewport-bug-workaround.js"></script>
 <script src="{{ site.baseurl }}/assets/js/ie-emulation-modes-warning.js"></script>
 
 {% if page.layout == "docs" %}
-<script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/2/docsearch.min.js"></script>
-<script type="text/javascript">
-  var docsearch = docsearch({
+<script src="https://cdn.jsdelivr.net/docsearch.js/2/docsearch.min.js"></script>
+<script>
+  docsearch({
     apiKey: '48cb48b22351bc71ea5f12f4d1ede198',
     indexName: 'bootstrap-v4',
     inputSelector: '#search-input',
@@ -47,10 +46,10 @@
 {% endif %}
 
 <script>
-Holder.addTheme('gray', {
-  bg: '#777',
-  fg: 'rgba(255,255,255,.75)',
-  font: 'Helvetica',
-  fontweight: 'normal'
-})
+  Holder.addTheme('gray', {
+    bg: '#777',
+    fg: 'rgba(255,255,255,.75)',
+    font: 'Helvetica',
+    fontweight: 'normal'
+  });
 </script>
diff --git a/_includes/social.html b/_includes/social.html
index 35bd9fde3..977142b19 100644
--- a/_includes/social.html
+++ b/_includes/social.html
@@ -1,3 +1,7 @@
+<!-- Meta -->
+<meta name="description" content="{{ site.description }}">
+<meta name="author" content="{{ site.authors }}">
+
 <!-- Twitter -->
 <meta name="twitter:site" content="@{{ site.twitter }}">
 <meta name="twitter:creator" content="@{{ site.twitter }}">
@@ -30,7 +34,3 @@
 <meta property="og:image:type" content="image/png">
 <meta property="og:image:width" content="1200">
 <meta property="og:image:height" content="630">
-
-<!-- Meta -->
-<meta name="description" content="{{ site.description }}">
-<meta name="author" content="{{ site.authors }}">