chore(docs): apply consistent css property spacing

Author: sathify

docs/app/assets/css/doc_widgets.css

@@ -22,7 +22,7 @@ ul.doc-example > li.doc-example-heading {
 span.nojsfiddle {
   float: right;
   font-size: 14px;
-  margin-right:10px;
+  margin-right: 10px;
   margin-top: 10px;
 }
 
@@ -42,7 +42,7 @@ form.jsfiddle button {
   color: #7989D6;
   border-color: #7989D6;
   -moz-border-radius: 8px;
-  -webkit-border-radius:8px;
+  -webkit-border-radius: 8px;
   border-radius: 8px;
 }