• 2022-05-27
    在某个元素的前面插入内容的样式是?
    A: div:after{ content:"-台词";background-color:yellow;color:red;font-weight:bold;}
    B: div:before{ content:"-台词";background-color:yellow;color:red;font-weight:bold;}
    C: div:center{ content:"-台词";background-color:yellow;color:red;font-weight:bold;}
    D: div:top{ content:"-台词";background-color:yellow;color:red;font-weight:bold;}