CSS 参考手册

CSS 浏览器支持 CSS 选择器 CSS 伪元素 CSS 组合符 CSS 函数 CSS 参考 (听觉) CSS 网页安全字体 CSS 字体回退 CSS 可动画属性 CSS PX 到 EM 转换器 CSS 颜色 CSS 颜色值 CSS 默认值 CSS 实体

CSS 选择器

.class #id * 元素 element.class element,element element element element>element element+element element1~element2 [attribute] [attribute=value] [attribute~=value] [attribute|=value] [attribute^=value] [attribute$=value] [attribute*=value] :active :checked :default :disabled :empty :enabled :first-child :first-of-type :focus :fullscreen :has() :hover :in-range :indeterminate :invalid :is() :lang() :last-child :last-of-type :link :not() :nth-child() :nth-last-child() :nth-last-of-type() :nth-of-type() :only-of-type :only-child :optional :out-of-range :read-only :read-write :required :root :target :valid :visited