diff --git a/js/styles/default.less b/js/styles/default.less
index ff49faf3..eb64ba3f 100644
--- a/js/styles/default.less
+++ b/js/styles/default.less
@@ -359,16 +359,16 @@ Override Bootstrap
 
 // Hack for nested btn-group
 #extension-buttons>.btn-group>.btn,
-#extension-preview-buttons>.btn-group>.btn {
+.extension-preview-buttons>.btn-group>.btn {
 	border-radius: 0;
 }
 #extension-buttons>.btn-group:first-child>.btn,
-#extension-preview-buttons>.btn-group:first-child>.btn {
+.extension-preview-buttons>.btn-group:first-child>.btn {
 	border-top-left-radius: 4px;
 	border-bottom-left-radius: 4px;
 }
 #extension-buttons>.btn-group:last-child>.btn,
-#extension-preview-buttons>.btn-group:last-child>.btn {
+.extension-preview-buttons>.btn-group:last-child>.btn {
     border-top-right-radius: 4px;
     border-bottom-right-radius: 4px;
 }