css3创建三角形
原理:将上丶右丶左三条边隐藏掉(颜色值设置为transparrent)
html:
<div class="demo"></div>
css:
.demo{ width:0; height:0; border-width:100px; border-style:solid; border-color:transparent transparent red transparent; margin: 0 auto; }
效果:
原理:将上丶右丶左三条边隐藏掉(颜色值设置为transparrent)
html:
<div class="demo"></div>
css:
.demo{ width:0; height:0; border-width:100px; border-style:solid; border-color:transparent transparent red transparent; margin: 0 auto; }
效果: