diff --git a/common/lib/xmodule/xmodule/css/capa/display.scss b/common/lib/xmodule/xmodule/css/capa/display.scss
index 6ef0d40176..7832d95cb4 100644
--- a/common/lib/xmodule/xmodule/css/capa/display.scss
+++ b/common/lib/xmodule/xmodule/css/capa/display.scss
@@ -147,6 +147,15 @@ div {
       width: 14px;
     }
 
+    &.processing, &.ui-icon-processing {
+      @include inline-block();
+      background: url('../images/spinner.gif') center center no-repeat;
+      height: 20px;
+      position: relative;
+      top: 6px;
+      width: 25px;
+    }
+
     &.correct, &.ui-icon-check {
       @include inline-block();
       background: url('../images/correct-icon.png') center center no-repeat;