add role="presentation" to tab <li>s to improve accessibility

Refs #13554.
Per https://github.com/paypal/bootstrap-accessibility-plugin/blob/master/README.md#tab-panel
Credit: https://github.com/paypal/bootstrap-accessibility-plugin

[skip sauce]

1 files changed, 33 insertions, 33 deletions

diff --git a/docs/_includes/components/navs.html b/docs/_includes/components/navs.html
index 5fcb1490c..3b15c4e16 100644
--- a/docs/_includes/components/navs.html
+++ b/docs/_includes/components/navs.html
@@ -7,16 +7,16 @@
   <p>Note the <code>.nav-tabs</code> class requires the <code>.nav</code> base class.</p>
   <div class="bs-example">
     <ul class="nav nav-tabs" role="tablist">
-      <li class="active"><a href="#">Home</a></li>
-      <li><a href="#">Profile</a></li>
-      <li><a href="#">Messages</a></li>
+      <li role="presentation" class="active"><a href="#">Home</a></li>
+      <li role="presentation"><a href="#">Profile</a></li>
+      <li role="presentation"><a href="#">Messages</a></li>
     </ul>
   </div>
 {% highlight html %}
 <ul class="nav nav-tabs" role="tablist">
-  <li class="active"><a href="#">Home</a></li>
-  <li><a href="#">Profile</a></li>
-  <li><a href="#">Messages</a></li>
+  <li role="presentation" class="active"><a href="#">Home</a></li>
+  <li role="presentation"><a href="#">Profile</a></li>
+  <li role="presentation"><a href="#">Messages</a></li>
 </ul>
 {% endhighlight %}
   <div class="bs-callout bs-callout-info">
@@ -28,24 +28,24 @@
   <p>Take that same HTML, but use <code>.nav-pills</code> instead:</p>
   <div class="bs-example">
     <ul class="nav nav-pills" role="tablist">
-      <li class="active"><a href="#">Home</a></li>
-      <li><a href="#">Profile</a></li>
-      <li><a href="#">Messages</a></li>
+      <li role="presentation" class="active"><a href="#">Home</a></li>
+      <li role="presentation"><a href="#">Profile</a></li>
+      <li role="presentation"><a href="#">Messages</a></li>
     </ul>
   </div>
 {% highlight html %}
 <ul class="nav nav-pills" role="tablist">
-  <li class="active"><a href="#">Home</a></li>
-  <li><a href="#">Profile</a></li>
-  <li><a href="#">Messages</a></li>
+  <li role="presentation" class="active"><a href="#">Home</a></li>
+  <li role="presentation"><a href="#">Profile</a></li>
+  <li role="presentation"><a href="#">Messages</a></li>
 </ul>
 {% endhighlight %}
   <p>Pills are also vertically stackable. Just add <code>.nav-stacked</code>.</p>
   <div class="bs-example">
     <ul class="nav nav-pills nav-stacked" role="tablist" style="max-width: 300px;">
-      <li class="active"><a href="#">Home</a></li>
-      <li><a href="#">Profile</a></li>
-      <li><a href="#">Messages</a></li>
+      <li role="presentation" class="active"><a href="#">Home</a></li>
+      <li role="presentation"><a href="#">Profile</a></li>
+      <li role="presentation"><a href="#">Messages</a></li>
     </ul>
   </div>
 {% highlight html %}
@@ -63,15 +63,15 @@
   </div>
   <div class="bs-example">
     <ul class="nav nav-tabs nav-justified" role="tablist">
-      <li class="active"><a href="#">Home</a></li>
-      <li><a href="#">Profile</a></li>
-      <li><a href="#">Messages</a></li>
+      <li role="presentation" class="active"><a href="#">Home</a></li>
+      <li role="presentation"><a href="#">Profile</a></li>
+      <li role="presentation"><a href="#">Messages</a></li>
     </ul>
     <br>
     <ul class="nav nav-pills nav-justified" role="tablist">
-      <li class="active"><a href="#">Home</a></li>
-      <li><a href="#">Profile</a></li>
-      <li><a href="#">Messages</a></li>
+      <li role="presentation" class="active"><a href="#">Home</a></li>
+      <li role="presentation"><a href="#">Profile</a></li>
+      <li role="presentation"><a href="#">Messages</a></li>
     </ul>
   </div>
 {% highlight html %}
@@ -94,15 +94,15 @@
 
   <div class="bs-example">
     <ul class="nav nav-pills" role="tablist">
-      <li><a href="#">Clickable link</a></li>
-      <li><a href="#">Clickable link</a></li>
-      <li class="disabled"><a href="#">Disabled link</a></li>
+      <li role="presentation"><a href="#">Clickable link</a></li>
+      <li role="presentation"><a href="#">Clickable link</a></li>
+      <li role="presentation" class="disabled"><a href="#">Disabled link</a></li>
     </ul>
   </div>
 {% highlight html %}
 <ul class="nav nav-pills" role="tablist">
   ...
-  <li class="disabled"><a href="#">Disabled link</a></li>
+  <li role="presentation" class="disabled"><a href="#">Disabled link</a></li>
   ...
 </ul>
 {% endhighlight %}
@@ -114,9 +114,9 @@
   <h3>Tabs with dropdowns</h3>
   <div class="bs-example">
     <ul class="nav nav-tabs" role="tablist">
-      <li class="active"><a href="#">Home</a></li>
-      <li><a href="#">Help</a></li>
-      <li class="dropdown">
+      <li role="presentation" class="active"><a href="#">Home</a></li>
+      <li role="presentation"><a href="#">Help</a></li>
+      <li role="presentation" class="dropdown">
         <a class="dropdown-toggle" data-toggle="dropdown" href="#">
           Dropdown <span class="caret"></span>
         </a>
@@ -133,7 +133,7 @@
 {% highlight html %}
 <ul class="nav nav-tabs" role="tablist">
   ...
-  <li class="dropdown">
+  <li role="presentation" class="dropdown">
     <a class="dropdown-toggle" data-toggle="dropdown" href="#">
       Dropdown <span class="caret"></span>
     </a>
@@ -148,9 +148,9 @@
   <h3>Pills with dropdowns</h3>
   <div class="bs-example">
     <ul class="nav nav-pills" role="tablist">
-      <li class="active"><a href="#">Home</a></li>
-      <li><a href="#">Help</a></li>
-      <li class="dropdown">
+      <li role="presentation" class="active"><a href="#">Home</a></li>
+      <li role="presentation"><a href="#">Help</a></li>
+      <li role="presentation" class="dropdown">
         <a class="dropdown-toggle" data-toggle="dropdown" href="#">
           Dropdown <span class="caret"></span>
         </a>
@@ -167,7 +167,7 @@
 {% highlight html %}
 <ul class="nav nav-pills" role="tablist">
   ...
-  <li class="dropdown">
+  <li role="presentation" class="dropdown">
     <a class="dropdown-toggle" data-toggle="dropdown" href="#">
       Dropdown <span class="caret"></span>
     </a>