.rule .title:after{content: ""; margin: 0 auto; width: 1rem; height: 1rem; border-radius: 2px; border-right: 1px solid #fff; border-bottom: 1px solid #fff; -webkit-transform: rotate(45deg); transform: rotate(45deg); display: block;}
js如何獲取div的偽類after或者如何設(shè)置after
momoyy123
2016-05-12 16:21:13
