自定义小尖角

.icon{
     display:inline-block;
     border-top:15px solid red;
     border-right:15px solid transparent;
     border-bottom:15px solid transparent;
     border-left:15px solid transparent;
}

<div class="icon"></div>
2019/07/16 15:16 下午 posted in  前端技术 CSS

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