您好，sudhir，

Hi  sudhir,

根据您的描述，您将使用内容查询" Web部件显示网站的所有自定义列表项，并希望为该内容查询Web部件应用自定义样式.是吗?

From your description, you use Content Query web part to show all custom lists' items of a site and want to apply a custom style for the content query web part. Is it right?

内容查询Web部件使用三个XSL文件，您可以导出内容查询Web部件并修改三个相关属性以使用您的自定义XSL文件.之后，将Web部件上载到您的站点并再次使用.

Content Query Web Part uses three XSL files and you can export the content query web part and modify the three related properties to use your custom XSL files. After that, upload the web part into your site and use it again.

有关此主题的更多信息，您可以参考:

More information about this topic, you can refer to:

http://www.srkk.com/2016/06/09/how-to-link-xsl-file-to-content-query-web-part-for-customization/

https://msdn.microsoft.com/zh-cn/library/office/bb447557%28v=office.14%29.aspx?f=255&MSPPError=-2147217396 谢谢

温迪