JSFiddle - React, Tailwind, and code Playground

by David Storey

HTML

<div class="clip-test"></div>

CSS

.clip-test {
    width: 200px;
    height: 200px;
    margin: 2em;
    padding: 2em;
    border: 2em solid darkgreen;
    background-color: green;
    -webkit-mask: -webkit-linear-gradient(black 0%, transparent 100%);
    -webkit-mask: linear-gradient(black 0%, transparent 100%);
    -moz-mask: linear-gradient(black 0%, transparent 100%);
    -ms-mask: linear-gradient(black 0%, transparent 100%);
    mask: linear-gradient(black 0%, transparent 100%);
}