CSS简介

定义

CSS -ncascading style sheet层叠样式表。本质上CSS其实是提取HTML元素中的样式属性，单独记录HTML元素的每个盒子元素的样式信息。

语法

MDN参考文档

1-What is CSS - MDN.pdf
2-Getting started with CSS - MDN.pdf
3-How CSS is structured.pdf
4-How CSS works.pdf
5-User agent - MDN.pdf