v4: Fix outdated utilites classes

1 files changed, 8 insertions, 8 deletions

diff --git a/docs/index.html b/docs/index.html
index 6ecac7979..3fe4c513b 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -20,14 +20,14 @@ layout: home
     <p class="lead">Quickly include Bootstrap's CSS and JS into any project. Use your favorite package manager, download the source, or use the Bootstrap CDN.</p>
 
     <div class="row">
-      <div class="col-sm-6 m-b-3">
+      <div class="col-sm-6 mb-3">
         <h4>Managed dependencies</h4>
         <p>Include Bootstrap's source Sass and JavaScript files via Bower, Composer, Meteor, or npm. Package managed installs don't include documentation, but do include our Gruntfile and readme.</p>
         <p>
           <a class="btn btn-bs btn-outline" href="{{ site.baseurl }}/getting-started/download/#package-managers">View install methods</a>
         </p>
       </div>
-      <div class="col-sm-6 m-b-3">
+      <div class="col-sm-6 mb-3">
         <h4>Bootstrap CDN</h4>
         <p>When you just need to include Bootstrap's compiled CSS and JS, use the Bootstrap CDN, free from the Max CDN folks.</p>
 {% highlight html %}
@@ -37,7 +37,7 @@ layout: home
       </div>
     </div>
 
-    <hr class="half-rule m-t-0">
+    <hr class="half-rule mt-0">
 
     <p><strong>Looking for something else?</strong> Compiled builds of Bootstrap's CSS and JS are also available.</p>
     <a href="{{ site.baseurl }}/getting-started/download/" class="btn btn-bs btn-outline">More download options</a>
@@ -50,24 +50,24 @@ layout: home
     <p class="lead">Bootstrap makes front-end web development faster and easier. It's made for folks of all skill levels, devices of all shapes, and projects of all sizes.</p>
 
     <div class="row">
-      <div class="col-sm-4 m-b-3">
+      <div class="col-sm-4 mb-3">
         <img src="{{ site.baseurl }}/assets/img/sass.png" alt="Sass support" class="img-fluid">
         <h4>Preprocessor</h4>
         <p>Bootstrap ships with vanilla CSS, but its source code utilizes <a href="http://sass-lang.com/">Sass</a>, a popular CSS preprocessor. Quickly get started with precompiled CSS or build on the source.</p>
       </div>
-      <div class="col-sm-4 m-b-3">
+      <div class="col-sm-4 mb-3">
         <img src="{{ site.baseurl }}/assets/img/devices.png" alt="Responsive across devices" class="img-fluid">
         <h4>One framework, every device.</h4>
         <p>Bootstrap easily and efficiently scales your websites and applications with a single code base, from phones to tablets to desktops with CSS media queries.</p>
       </div>
-      <div class="col-sm-4 m-b-3">
+      <div class="col-sm-4 mb-3">
         <img src="{{ site.baseurl }}/assets/img/components.png" alt="Components" class="img-fluid">
         <h4>Full of features</h4>
         <p>With Bootstrap, you get extensive and beautiful documentation for common HTML elements, dozens of custom HTML and CSS components, and awesome jQuery plugins.</p>
       </div>
     </div>
 
-    <hr class="half-rule m-t-0">
+    <hr class="half-rule mt-0">
 
     <p><strong>Bootstrap is open source!</strong> It's hosted, developed, and maintained on GitHub by folks like you.</p>
     <a href="{{ site.repo }}" class="btn btn-bs btn-outline">View the GitHub project</a>
@@ -85,7 +85,7 @@ layout: home
       <a href="{{ site.themes }}" class="btn btn-bs btn-outline">Browse themes</a>
     </p>
 
-    <img class="img-fluid m-x-auto" src="{{ site.baseurl }}/assets/img/bs-themes.png" alt="Bootstrap Themes" width="1024" height="388">
+    <img class="img-fluid mx-auto" src="{{ site.baseurl }}/assets/img/bs-themes.png" alt="Bootstrap Themes" width="1024" height="388">
   </div>
 </div>