Sclass
From Documentation
The purpose of the Sclass is to lightly change the CSS of the component.
For example,
<zk> <style dynamic="true"> .mydb { border: 1px solid blue; } </style> <textbox sclass="mydb" value="having Sclass"/> <textbox value="Without Sclass"/> </zk> As you can see, the above example has two Textbox, one has the Sclass property, and the other has no the Sclass property. Most of the time we need to customize a style with a special field without influencing others, we can specify the Sclass property instead.