fixes #9880: use correct grid classes on jumbotron example

diff --git a/examples/jumbotron/index.html b/examples/jumbotron/index.html
index 86255fca355a0169a24cc403a38f589e684bb070..31d11eebb5e33476b8fd73b680f5b5813c1bdcc6 100644 (file)
--- a/examples/jumbotron/index.html
+++ b/examples/jumbotron/index.html
@@ -77,17 +77,17 @@
     <div class="container">
       <!-- Example row of columns -->
       <div class="row">
-        <div class="col-lg-4">
+        <div class="col-md-4">
           <h2>Heading</h2>
           <p>Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui. </p>
           <p><a class="btn btn-default" href="#">View details &raquo;</a></p>
         </div>
-        <div class="col-lg-4">
+        <div class="col-md-4">
           <h2>Heading</h2>
           <p>Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui. </p>
           <p><a class="btn btn-default" href="#">View details &raquo;</a></p>
        </div>
-        <div class="col-lg-4">
+        <div class="col-md-4">
           <h2>Heading</h2>
           <p>Donec sed odio dui. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Vestibulum id ligula porta felis euismod semper. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus.</p>
           <p><a class="btn btn-default" href="#">View details &raquo;</a></p>