diff --git a/theme/boost/templates/core/block.mustache b/theme/boost/templates/core/block.mustache
index 783fe9aebd2..b09b4dbf52d 100644
--- a/theme/boost/templates/core/block.mustache
+++ b/theme/boost/templates/core/block.mustache
@@ -18,7 +18,7 @@
      {{/arialabel}}>
 
     {{! Block contents }}
-    <div class="card-block">
+    <div class="card-block content">
 
         {{#hascontrols}}
             <div class="block-controls pull-xs-right">