JSFiddle - React, Tailwind, and code Playground

by J. Albert Bowden

HTML

<div class="block">
  <div class="parallelogram-left shape"></div>
</div>

CSS

.block{margin:1em auto}
.shape{background-color:#000; margin-left:auto; margin-right:auto}
.parallelogram-left{width:100px; height:70px; background:#000; -moz-transform:skew(20deg); -o-transform:skew(20deg); -webkit-transform:skew(20deg); transform:skew(20deg);}