> For the complete documentation index, see [llms.txt](https://zhang-hao-wei.gitbook.io/introduction-to-front-end-design-for-high-school/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zhang-hao-wei.gitbook.io/introduction-to-front-end-design-for-high-school/master.md).

# 封面

![](https://2738715268-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MDOZ9Y4Hq6fdAqhL-Ie%2Fuploads%2FbSJv7uCrVJmw00FKrC14%2F%E6%9B%B8%E5%B0%81%E9%9D%A2.png?alt=media\&token=fd07a009-da4d-41fa-bba9-696c8dff11a7)