add space

resource/styles/scss/_on-edit.scss

@@ -98,7 +98,7 @@ body.on-edit {
           height: calc(100vh - #{$header-plus-footer});
         .fugafuga {
           .CodeMirror-cursor {
-            &:after{
+            &:after {
               font-family: 'FontAwesome';
               content: '\f0ce';
             }