<div class="wrap"></div>
.wrap{ width: 0; height: 0; border: 100px solid red; border-color: blue transparent transparent transparent+; }
crazy-rock 2021-01-04 10:21 原文
<div class="wrap"></div>
.wrap{ width: 0; height: 0; border: 100px solid red; border-color: blue transparent transparent transparent+; }