css三角形
.类名{
position: absolute;
width: 0px;
height: 0px;
content: " ";
border-right: 10px solid transparent;
border-top: 20px solid rgb(8, 95, 255);
border-left: 10px solid transparent;
border-bottom: 100px solid transparent;
}

浙公网安备 33010602011771号