JSFiddle - React, Tailwind, and code Playground

HTML

<div class="skew"></div>

CSS

/* Skew the container one way */
.skew {
    background: #000;
    display: inline-block;
    height: 50px;
    width: 500px;
    margin-top: 100px;
    -webkit-transform: skewY(-5deg);
    -moz-transform: skewY(-5deg);
    -ms-transform: skewY(-5deg);
    -o-transform: skewY(-5deg);
    transform: skewY(-5deg);
}