Update Bootstrap

_layouts/post.html

@@ -4,7 +4,7 @@ layout: default
 
 <div class="container">
   <div class="row">
-    <div class="col-md-12 post">
+    <div class="col-xs-12 post" style="margin-top: 2rem;">
 
       <header class="post-header">
         <h1 class="post-title">{{ page.title }}</h1>