A question about the cssclass attribute in the struts2 tag

Question: I want to ask you how to use the original CSS, like the select tag, if you have never used the struts2 tag.

A: I remember that the struts2 tag has a cssclass attribute. You can specify the attribute defined in CSS.

 

Appendix:

 

General Attributes

Attribute	Theme	Data Types	Description
Cssclass	Simple	String	Define HTML class attribute
Cssstyle	Simple	String	Define HTML style attribute
Title	Simple	String	Define HTML title attribute
Disabled	Simple	String	Define HTML disabled attribute
Label	XHTML	String	Define label of form Element
Labelposition	XHTML	String	Define label position of form element (top/left), default to left
Requiredposition	XHTML	String	Define required label position of form element (left/right), default Right
Name	Simple	String	Form element's field name mapping
Required	XHTML	Boolean	Add * to label (true to add false otherwise)
Tabindex	Simple	String	Define HTML tabindex attribute
Value	Simple	Object	Define value of form Element