> For the complete documentation index, see [llms.txt](https://sherwinshen.gitbook.io/qian-duan-xue-xi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sherwinshen.gitbook.io/qian-duan-xue-xi/frontend-basic/css.md).

# CSS

{% hint style="warning" %}
CSS：层叠样式表(Cascading Style Sheet)，用于给 HTML 页面标签添加各种样式，定义网页显示效果。⚠️ 该部分的相关内容中 CSS 与 CSS3 不作区分。
{% endhint %}

{% content-ref url="/pages/-M\_ZneFZGpUut7VlwuI2" %}
[基础知识](/qian-duan-xue-xi/frontend-basic/css/css-basic.md)
{% endcontent-ref %}

{% content-ref url="/pages/-M\_ZnkYnVL8jFaVk8bdr" %}
[进阶知识](/qian-duan-xue-xi/frontend-basic/css/css-advanced.md)
{% endcontent-ref %}

{% content-ref url="/pages/-M\_ZnsDIpSlqB6K0BabE" %}
[CSS 专题](/qian-duan-xue-xi/frontend-basic/css/css-topics.md)
{% endcontent-ref %}

{% hint style="info" %}
如果你对内容有任何疑问，欢迎提交 [❕issues](https://github.com/MrEnvision/Front-end_learning_notes/issues) 或 [✉️ email](mailto:EnvisionShen@gmail.com)
{% endhint %}


---

# Agent Instructions
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