A simple selector is either a type selector or universal selector followed immediately by zero or more attribute selectors, ID selectors, or pseudo-classes, in any order.
一个简单选择符或者是一个类型选择符，或者是一个全局选择符，紧跟在后的是零个或多个属性选择符，ID选择符或伪类，次序任意。
Rules that apply the: hover pseudo-selector to non-link elements.
对非链接元素应用：hover伪选择器的规则。
Rules that apply the: hover pseudo-selector to non-link elements.
对非链接元素应用：hover伪选择器的规则。
应用推荐