Remove Internet Explorer leftovers

site/content/docs/4.3/examples/album/index.html

@@ -35,7 +35,7 @@ title: Album example
   </div>
 </header>
 
-<main role="main">
+<main>
 
   <section class="py-5 text-center container">
     <div class="row py-lg-5">

site/content/docs/4.3/examples/blog/index.html

@@ -82,7 +82,7 @@ include_js: false
   </div>
 </div>
 
-<main role="main" class="container">
+<main class="container">
   <div class="row">
     <div class="col-md-8 blog-main">
       <h3 class="pb-4 mb-4 font-italic border-bottom">

site/content/docs/4.3/examples/carousel/index.html

@@ -33,7 +33,7 @@ extra_css:
   </nav>
 </header>
 
-<main role="main">
+<main>
 
   <div id="myCarousel" class="carousel slide" data-ride="carousel">
     <ol class="carousel-indicators">

site/content/docs/4.3/examples/cover/index.html

@@ -20,7 +20,7 @@ include_js: false
     </div>
   </header>
 
-  <main role="main" class="px-3">
+  <main class="px-3">
     <h1>Cover your page.</h1>
     <p class="lead">Cover is a one-page template for building simple and beautiful home pages. Download, edit the text, and add your own fullscreen background photo to make it your own.</p>
     <p class="lead">

site/content/docs/4.3/examples/dashboard/index.html

@@ -102,7 +102,7 @@ extra_js:
       </div>
     </nav>
 
-    <main role="main" class="col-md-9 ml-sm-auto col-lg-10 px-md-4">
+    <main class="col-md-9 ml-sm-auto col-lg-10 px-md-4">
       <div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pt-3 pb-2 mb-3 border-bottom">
         <h1 class="h2">Dashboard</h1>
         <div class="btn-toolbar mb-2 mb-md-0">

site/content/docs/4.3/examples/floating-labels/floating-labels.css

@@ -86,14 +86,3 @@ body {
     color: #777;
   }
 }
-
-/* Fallback for IE
--------------------------------------------------- */
-@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
-  .form-label-group > label {
-    display: none;
-  }
-  .form-label-group input:-ms-input-placeholder {
-    color: #777;
-  }
-}

site/content/docs/4.3/examples/navbar-fixed/index.html

@@ -31,7 +31,7 @@ extra_css:
   </div>
 </nav>
 
-<main role="main" class="container">
+<main class="container">
   <div class="bg-light p-5 rounded">
     <h1>Navbar example</h1>
     <p class="lead">This example is a quick exercise to illustrate how fixed to top navbar works. As you scroll, it will remain fixed to the top of your browser’s viewport.</p>

site/content/docs/4.3/examples/navbar-static/index.html

@@ -31,7 +31,7 @@ extra_css:
   </div>
 </nav>
 
-<main role="main" class="container">
+<main class="container">
   <div class="bg-light p-5 rounded">
     <h1>Navbar example</h1>
     <p class="lead">This example is a quick exercise to illustrate how the top-aligned navbar works. As you scroll, this navbar remains in its original position and moves with the rest of the page.</p>

site/content/docs/4.3/examples/navbars/index.html

@@ -365,7 +365,7 @@ extra_css:
     </div>
   </nav>
 
-  <main role="main">
+  <main>
     <div class="bg-light p-5 rounded">
       <div class="col-sm-8 mx-auto">
         <h1>Navbar examples</h1>

site/content/docs/4.3/examples/offcanvas/index.html

@@ -63,7 +63,7 @@ body_class: "bg-light"
   </nav>
 </div>
 
-<main role="main" class="container">
+<main class="container">
   <div class="d-flex align-items-center p-3 my-3 text-white-50 bg-purple rounded shadow-sm">
     <img class="mr-3" src="/docs/{{< param docs_version >}}/assets/brand/bootstrap-outline.svg" alt="" width="48" height="48">
     <div class="lh-1">

site/content/docs/4.3/examples/starter-template/index.html

@@ -40,7 +40,7 @@ extra_css:
   </div>
 </nav>
 
-<main role="main" class="container">
+<main class="container">
 
   <div class="starter-template text-center py-5 px-3">
     <h1>Bootstrap starter template</h1>

site/content/docs/4.3/examples/sticky-footer-navbar/index.html

@@ -37,7 +37,7 @@ body_class: "d-flex flex-column h-100"
 </header>
 
 <!-- Begin page content -->
-<main role="main" class="flex-shrink-0">
+<main class="flex-shrink-0">
   <div class="container">
     <h1 class="mt-5">Sticky footer with fixed navbar</h1>
     <p class="lead">Pin a footer to the bottom of the viewport in desktop browsers with this custom HTML and CSS. A fixed navbar has been added with <code class="small">padding-top: 60px;</code> on the <code class="small">main &gt; .container</code>.</p>

site/content/docs/4.3/examples/sticky-footer/index.html

@@ -9,7 +9,7 @@ include_js: false
 ---
 
 <!-- Begin page content -->
-<main role="main" class="flex-shrink-0">
+<main class="flex-shrink-0">
   <div class="container">
     <h1 class="mt-5">Sticky footer</h1>
     <p class="lead">Pin a footer to the bottom of the viewport in desktop browsers with this custom HTML and CSS.</p>