CSS validator: Adds an easy-to-use link to the W3C CSS validator that you can access via a right-click context menu or from under the Tools menu.

CSSValidator：提供到W3C CSS验证器的易用链接，你可以通过右键的上下文菜单或者工具菜单来进行访问。

youdao

CSS validator: Adds an easy-to-use link to the W3C CSS validator that you can access via a right-click context menu or from under the Tools menu.

CSSValidator：提供到W3C CSS验证器的易用链接，你可以通过右键的上下文菜单或者工具菜单来进行访问。

youdao