Hi,   Can you try to use this approach for now ?!:   1. CustomCSS: ._mylabelCls {     font-weight: bold;     color: green;     font-size: 18pt;     text-align: center;     padding-top: 7px; } 2. UnimEdit -> ClientEvents -> UniEvents -> fn beforeInit: function beforeInit(sender, config) {     config.labelCls = '_mylabelCls'; } Best regards,