diff --git a/aio/src/styles/2-modules/_subsection.scss b/aio/src/styles/2-modules/_subsection.scss
index bde0b54b24..a6f47bd0e8 100644
--- a/aio/src/styles/2-modules/_subsection.scss
+++ b/aio/src/styles/2-modules/_subsection.scss
@@ -4,6 +4,8 @@
     border-left: 8px solid $blue;
     padding: 16px;
     margin-bottom: 8px;
+    display: table;
+    clear: both;
 
     h3 {
         margin: 8px 0 0;