shape
.triangle{ width: 0px!important; height: 0px!important; border-left: 100px solid transparent; border-right: 100px solid transparent; border-bottom: 150px solid red; position: relative; } .triangle::before{ position: absolute!important; content:”; width: 0px; height: 0px; top:75px; left: -87px; right: 0px; bottom:0; margin: auto; border-left: 87px solid transparent; border-right: 87px solid transparent; border-bottom:138px solid #fff; }