JSFiddle - React, Tailwind, and code Playground

HTML

<div id="newtab">
</div>

CSS

#newtab {
	width: 150px;
	height: 100px;
	-webkit-transform: skew(20deg);
	   -moz-transform: skew(20deg);
	     -o-transform: skew(20deg);
	background: #A8D5C1;
  margin-left: 20px;
  border-radius: 10px;
}