CSS3 画如下图形

Question

请教一下CSS3怎么画出如下的tab，其中一个的样式即可

Answer 1

css

*,div{
margin:0;
padding:0;
}
    .demo{
        width:100px;
        height:50px;
        border-top:1px solid black;
        margin:200px;
        position: relative;
    }
    .demo::before{
        content: "";
        width: 50px;
        height: 50px;
        border-left: 1px solid black;
        transform: rotate(45deg);
        position: absolute;
        top: 10px;
        left: -25px;
        
    }
    .demo::after{
        content: "";
        width: 50px;
        height: 50px;
        border-top: 1px solid black;
        transform: rotate(45deg);
        position: absolute;
        top: 10px;
        right: -25px;        
    }

html

<div class="demo"></div>

Answer 2

.trapezoid-1 {

        height: 0;
        width: 100px;
        border-bottom: 100px solid #e5c3b2;
        border-left: 60px solid transparent;
        border-right: 60px solid transparent;
    }