diff --git a/common/lib/xmodule/xmodule/css/annotatable/display.scss b/common/lib/xmodule/xmodule/css/annotatable/display.scss
index 308b379ec1..c462d4806e 100644
--- a/common/lib/xmodule/xmodule/css/annotatable/display.scss
+++ b/common/lib/xmodule/xmodule/css/annotatable/display.scss
@@ -127,6 +127,7 @@ $body-font-size: em(14);
     font-weight: 400;
     padding: 0 10px 10px 10px;
     background-color: transparent;
+    border-color: transparent;
   } 
   p { 
       color: inherit;