JSFiddle - React, Tailwind, and code Playground

by warriormole

HTML

<div style="margin:30px">
    <div class="trapezoid">
    </div>
</div>

CSS

.trapezoid{
    position:relative;
    border-bottom: 100px solid blue;
    border-right: 12px solid transparent;
    border-left: 180px solid transparent;
    width: 122px;
}

.trapezoid:before{
    content:' ';
    left:-184px;
    top:98px;
    position:absolute;
    background:blue;
    border-radius:80px 20px 80px 80px;
    width:318px;
    height:20px;
}


.trapezoid:after {
    content:' ';
    left:-11px;
    top:-7px;
    position:absolute;
    background:blue;
    border-radius:150px 50px 90px 0px;
    width:133px;
    height:30px;
}