css 常用的选择器-白红宇

css 常用的选择器

阅读量：369 次

发布时间：2019-03-05

本文共 501 字，大约阅读时间需要 1 分钟。

CSS ??????????????????????????????????????? CSS ???????????????? DOM ???

id ???? # ?????????? HTML ??????#username ????? id="username" ????

?????????????????h3 ????? <h3> ???

????? . ??????????????????????.btn ??????? class="btn" ????

??????????? : ???????????a[href] ??????? href ??? <a> ???

???????? > ??????????????div > a ?? <div> ????????? <a>?

????????????????????????div a ??? <div> ??????????? <a> ???

??????????????? input, textarea ??????? <input> ? <textarea> ???

??????????????????????????

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