JSFiddle - React, Tailwind, and code Playground

by caos30

HTML

<div class="wave"></div>
<div class="wave withborder"></div>

CSS

.wave {
  position: relative;
  height: 70px;
  width: 600px;
  background: #e0efe3;   
}

.wave:before {
        content: "";
        display: block;
        position: absolute;
        border-radius: 100% 50%;
        width: 340px;
    height: 80px;
    background-color: white;
    right: -5px;
    top: 40px;
}

.wave:after {
        content: "";
        display: block;
        position: absolute;
        border-radius: 100% 50%;
        width: 300px;
    height: 70px;
    background-color: #e0efe3;
    left: 0;
    top: 27px;
}

.withborder{border:1px #000 solid; margin-top:50px;}
.withborder:before{border:1px #c00 solid; }
.withborder:after{border:1px #0c0 solid; }