Repair syntax and additional publish-modal style

services/web/public/stylesheets/components/publish-modal.less

@@ -1,4 +1,5 @@
 .publish-guide .form-control,
 .publish-guide .form-control-box {
-  width: '30%';
+  width: 70%;
+  margin_bottom: 1.0ex;
 }