Use https when possible.

CONTRIBUTING.md

@@ -19,7 +19,7 @@ and [submitting pull requests](#pull-requests), but please respect the following
 restrictions:
 
 * Please **do not** use the issue tracker for personal support requests.  Stack
-  Overflow ([`twitter-bootstrap-3`](http://stackoverflow.com/questions/tagged/twitter-bootstrap-3) tag) or [IRC](README.md#community) are better places to get help.
+  Overflow ([`twitter-bootstrap-3`](https://stackoverflow.com/questions/tagged/twitter-bootstrap-3) tag) or [IRC](README.md#community) are better places to get help.
 
 * Please **do not** derail or troll issues. Keep the discussion on topic and
   respect the opinions of others.
@@ -149,7 +149,7 @@ documentation source files and is managed separately by the Bootstrap Core Team.
 Adhering to the following process is the best way to get your work
 included in the project:
 
-1. [Fork](http://help.github.com/fork-a-repo/) the project, clone your fork,
+1. [Fork](https://help.github.com/fork-a-repo/) the project, clone your fork,
    and configure the remotes:
 
    ```bash

README.md

@@ -107,7 +107,7 @@ Get updates on Bootstrap's development and chat with the project maintainers and
 - Read and subscribe to [The Official Bootstrap Blog](http://blog.getbootstrap.com).
 - Join [the official Slack room](https://bootstrap-slack.herokuapp.com).
 - Chat with fellow Bootstrappers in IRC. On the `irc.freenode.net` server, in the `##bootstrap` channel.
-- Implementation help may be found at Stack Overflow (tagged [`twitter-bootstrap-3`](http://stackoverflow.com/questions/tagged/twitter-bootstrap-3)).
+- Implementation help may be found at Stack Overflow (tagged [`twitter-bootstrap-3`](https://stackoverflow.com/questions/tagged/twitter-bootstrap-3)).
 - Developers should use the keyword `bootstrap` on packages which modify or add to the functionality of Bootstrap when distributing through [npm](https://www.npmjs.com/browse/keyword/bootstrap) or similar delivery mechanisms for maximum discoverability.
 
 

docs/_includes/css/tables.html

@@ -363,7 +363,7 @@ <h4>Firefox and fieldsets</h4>
   fieldset { display: table-cell; }
 }
 {% endhighlight %}
-    <p>For more information, read <a href="http://stackoverflow.com/questions/17408815/fieldset-resizes-wrong-appears-to-have-unremovable-min-width-min-content/17863685#17863685">this Stack Overflow answer</a>.</p>
+    <p>For more information, read <a href="https://stackoverflow.com/questions/17408815/fieldset-resizes-wrong-appears-to-have-unremovable-min-width-min-content/17863685#17863685">this Stack Overflow answer</a>.</p>
   </div>
 
   <div class="bs-example" data-example-id="simple-responsive-table">

docs/_includes/getting-started/browser-device-support.html

@@ -116,7 +116,7 @@ <h2 id="support-ie-compatibility-modes">IE Compatibility modes</h2>
 {% endhighlight %}
   <p>Confirm the document mode by opening the debugging tools: press <kbd>F12</kbd> and check the "Document Mode".</p>
   <p>This tag is included in all of Bootstrap's documentation and examples to ensure the best rendering possible in each supported version of Internet Explorer.</p>
-  <p>See <a href="http://stackoverflow.com/questions/6771258/whats-the-difference-if-meta-http-equiv-x-ua-compatible-content-ie-edge">this StackOverflow question</a> for more information.</p>
+  <p>See <a href="https://stackoverflow.com/questions/6771258/whats-the-difference-if-meta-http-equiv-x-ua-compatible-content-ie-edge">this StackOverflow question</a> for more information.</p>
 
   <h2 id="support-ie10-width">Internet Explorer 10 in Windows 8 and Windows Phone 8</h2>
   <p>Internet Explorer 10 doesn't differentiate <strong>device width</strong> from <strong>viewport width</strong>, and thus doesn't properly apply the media queries in Bootstrap's CSS. Normally you'd just add a quick snippet of CSS to fix this:</p>
@@ -189,7 +189,7 @@ <h2 id="support-printing">Printing</h2>
   <h2 id="support-android-stock-browser">Android stock browser</h2>
   <p>Out of the box, Android 4.1 (and even some newer releases apparently) ship with the Browser app as the default web browser of choice (as opposed to Chrome). Unfortunately, the Browser app has lots of bugs and inconsistencies with CSS in general.</p>
   <h3>Select menus</h3>
-  <p>On <code>&lt;select&gt;</code> elements, the Android stock browser will not display the side controls if there is a <code>border-radius</code> and/or <code>border</code> applied. (See <a href="http://stackoverflow.com/questions/14744437/html-select-box-not-showing-drop-down-arrow-on-android-version-4-0-when-set-with">this StackOverflow question</a> for details.) Use the snippet of code below to remove the offending CSS and render the <code>&lt;select&gt;</code> as an unstyled element on the Android stock browser. The user agent sniffing avoids interference with Chrome, Safari, and Mozilla browsers.</p>
+  <p>On <code>&lt;select&gt;</code> elements, the Android stock browser will not display the side controls if there is a <code>border-radius</code> and/or <code>border</code> applied. (See <a href="https://stackoverflow.com/questions/14744437/html-select-box-not-showing-drop-down-arrow-on-android-version-4-0-when-set-with">this StackOverflow question</a> for details.) Use the snippet of code below to remove the offending CSS and render the <code>&lt;select&gt;</code> as an unstyled element on the Android stock browser. The user agent sniffing avoids interference with Chrome, Safari, and Mozilla browsers.</p>
 {% highlight html %}
 <script>
 $(function () {

docs/_includes/getting-started/community.html

@@ -5,7 +5,7 @@ <h1 id="community" class="page-header">Community</h1>
   <ul>
     <li>Read and subscribe to <a href="http://blog.getbootstrap.com/">The Official Bootstrap Blog</a>.</li>
     <li>Chat with fellow Bootstrappers using IRC in the <code>irc.freenode.net</code> server, in the <a href="irc://irc.freenode.net/%23bootstrap">##bootstrap channel</a>.</li>
-    <li>For help using Bootstrap, ask on <a href="http://stackoverflow.com/questions/tagged/twitter-bootstrap-3">StackOverflow using the tag <code>twitter-bootstrap-3</code></a>.</li>
+    <li>For help using Bootstrap, ask on <a href="https://stackoverflow.com/questions/tagged/twitter-bootstrap-3">StackOverflow using the tag <code>twitter-bootstrap-3</code></a>.</li>
     <li>Developers should use the keyword <code>bootstrap</code> on packages which modify or add to the functionality of Bootstrap when distributing through <a href="https://www.npmjs.com/browse/keyword/bootstrap">npm</a> or similar delivery mechanisms for maximum discoverability.</li>
     <li>Find inspiring examples of people building with Bootstrap at the <a href="http://expo.getbootstrap.com">Bootstrap Expo</a>.</li>
   </ul>

docs/_includes/getting-started/download.html

@@ -28,7 +28,7 @@ <h3 id="download-sass">Sass</h3>
   </div>
 
   <h2 id="download-cdn">Bootstrap CDN</h2>
-  <p>The folks over at <a href="http://www.maxcdn.com/">MaxCDN</a> graciously provide CDN support for Bootstrap's CSS and JavaScript. Just use these <a href="http://www.bootstrapcdn.com/">Bootstrap CDN</a> links.</p>
+  <p>The folks over at <a href="https://www.maxcdn.com/">MaxCDN</a> graciously provide CDN support for Bootstrap's CSS and JavaScript. Just use these <a href="https://www.bootstrapcdn.com/">Bootstrap CDN</a> links.</p>
 {% highlight html %}
 <!-- Latest compiled and minified CSS -->
 <link rel="stylesheet" href="{{ site.cdn.css }}">

docs/_includes/getting-started/grunt.html

@@ -4,7 +4,7 @@ <h1 id="grunt" class="page-header">Compiling CSS and JavaScript</h1>
   <p class="lead">Bootstrap uses <a href="http://gruntjs.com">Grunt</a> for its build system, with convenient methods for working with the framework. It's how we compile our code, run tests, and more.</p>
 
   <h2 id="grunt-installing">Installing Grunt</h2>
-  <p>To install Grunt, you must <strong>first <a href="http://nodejs.org/download/">download and install node.js</a></strong> (which includes npm). npm stands for <a href="https://www.npmjs.com/">node packaged modules</a> and is a way to manage development dependencies through node.js.</p>
+  <p>To install Grunt, you must <strong>first <a href="https://nodejs.org/download/">download and install node.js</a></strong> (which includes npm). npm stands for <a href="https://www.npmjs.com/">node packaged modules</a> and is a way to manage development dependencies through node.js.</p>
 
   Then, from the command line:
   <ol>

docs/_includes/getting-started/third-party-support.html

@@ -3,7 +3,7 @@ <h1 id="third-parties" class="page-header">Third party support</h1>
   <p class="lead">While we don't officially support any third party plugins or add-ons, we do offer some useful advice to help avoid potential issues in your projects.</p>
 
   <h2 id="third-box-sizing">Box-sizing</h2>
-  <p>Some third party software, including Google Maps and Google Custom Search Engine, conflict with Bootstrap due to <code>* { box-sizing: border-box; }</code>, a rule which makes it so <code>padding</code> does not affect the final computed width of an element. Learn more about <a href="http://css-tricks.com/box-sizing/">box model and sizing at CSS Tricks</a>.</p>
+  <p>Some third party software, including Google Maps and Google Custom Search Engine, conflict with Bootstrap due to <code>* { box-sizing: border-box; }</code>, a rule which makes it so <code>padding</code> does not affect the final computed width of an element. Learn more about <a href="https://css-tricks.com/box-sizing/">box model and sizing at CSS Tricks</a>.</p>
   <p>Depending on the context, you may override as-needed (Option 1) or reset the box-sizing for entire regions (Option 2).</p>
 {% highlight scss %}
 /* Box-sizing resets

docs/_includes/js/modal.html

@@ -147,7 +147,7 @@ <h4>Make modals accessible</h4>
 
   <div class="bs-callout bs-callout-info" id="callout-modal-youtube">
     <h4>Embedding YouTube videos</h4>
-    <p>Embedding YouTube videos in modals requires additional JavaScript not in Bootstrap to automatically stop playback and more. <a href="http://stackoverflow.com/questions/18622508/bootstrap-3-and-youtube-in-modal">See this helpful Stack Overflow post</a> for more information.</p>
+    <p>Embedding YouTube videos in modals requires additional JavaScript not in Bootstrap to automatically stop playback and more. <a href="https://stackoverflow.com/questions/18622508/bootstrap-3-and-youtube-in-modal">See this helpful Stack Overflow post</a> for more information.</p>
   </div>
 
   <h2 id="modals-sizes">Optional sizes</h2>

docs/_includes/social-buttons.html

@@ -1,10 +1,10 @@
 <div class="bs-docs-social">
   <ul class="bs-docs-social-buttons">
     <li>
-      <iframe class="github-btn" src="http://ghbtns.com/github-btn.html?user=twbs&amp;repo=bootstrap&amp;type=watch&amp;count=true" width="100" height="20" title="Star on GitHub"></iframe>
+      <iframe class="github-btn" src="https://ghbtns.com/github-btn.html?user=twbs&amp;repo=bootstrap&amp;type=watch&amp;count=true" width="100" height="20" title="Star on GitHub"></iframe>
     </li>
     <li>
-      <iframe class="github-btn" src="http://ghbtns.com/github-btn.html?user=twbs&amp;repo=bootstrap&amp;type=fork&amp;count=true" width="102" height="20" title="Fork on GitHub"></iframe>
+      <iframe class="github-btn" src="https://ghbtns.com/github-btn.html?user=twbs&amp;repo=bootstrap&amp;type=fork&amp;count=true" width="102" height="20" title="Fork on GitHub"></iframe>
     </li>
     <li class="follow-btn">
       <a href="https://twitter.com/getbootstrap" class="twitter-follow-button" data-link-color="#0069D6" data-show-count="true">Follow @getbootstrap</a>

docs/about.html

@@ -28,9 +28,9 @@ <h2 id="team-core">Core team</h2>
   <div class="list-group bs-team">
     {% for member in site.data.core-team %}
       <div class="list-group-item">
-        <iframe class="github-btn" src="http://ghbtns.com/github-btn.html?user={{ member.user }}&amp;type=follow"></iframe>
+        <iframe class="github-btn" src="https://ghbtns.com/github-btn.html?user={{ member.user }}&amp;type=follow"></iframe>
         <a class="team-member" href="https://github.com/{{ member.user }}">
-          <img src="http://www.gravatar.com/avatar/{{ member.gravatar }}.jpg?s=32" alt="@{{ member.user }} avatar" width="32" height="32">
+          <img src="https://secure.gravatar.com/avatar/{{ member.gravatar }}.jpg?s=32" alt="@{{ member.user }} avatar" width="32" height="32">
           <strong>{{ member.name }}</strong> <small>@{{ member.user }}</small>
         </a>
       </div>
@@ -42,9 +42,9 @@ <h2 id="team-sass">Sass team</h2>
   <div class="list-group bs-team">
     {% for member in site.data.sass-team %}
       <div class="list-group-item">
-        <iframe class="github-btn" src="http://ghbtns.com/github-btn.html?user={{ member.user }}&amp;type=follow"></iframe>
+        <iframe class="github-btn" src="https://ghbtns.com/github-btn.html?user={{ member.user }}&amp;type=follow"></iframe>
         <a class="team-member" href="https://github.com/{{ member.user }}">
-          <img src="http://www.gravatar.com/avatar/{{ member.gravatar }}.jpg?s=32" alt="@{{ member.user }} avatar" width="32" height="32">
+          <img src="https://secure.gravatar.com/avatar/{{ member.gravatar }}.jpg?s=32" alt="@{{ member.user }} avatar" width="32" height="32">
           <strong>{{ member.name }}</strong> <small>@{{ member.user }}</small>
         </a>
       </div>

docs/assets/css/src/docs.css

@@ -2,7 +2,7 @@
  * Bootstrap Docs (http://getbootstrap.com)
  * Copyright 2011-2015 Twitter, Inc.
  * Licensed under the Creative Commons Attribution 3.0 Unported License. For
- * details, see http://creativecommons.org/licenses/by/3.0/.
+ * details, see https://creativecommons.org/licenses/by/3.0/.
  */