JSFiddle - React, Tailwind, and code Playground

by extempl

HTML

<div class="arrow_box"></div>

CSS

.arrow_box {
	position: relative;
	background: #88b7d5;
	border: 6px solid #c2e1f5;
  padding: 40px;
  width: 280px;
  height: 100px;
  border-radius: 0 7px 7px 0;
}
.arrow_box:after, .arrow_box:before {
	left: 90%;
	top: 50%;
	border: solid transparent;
	content: " ";
	height: 0;
	width: 0;
	position: absolute;
	pointer-events: none;
  transform: scale(0.6, 1.025);
}

.arrow_box:after {
	border-color: rgba(136, 183, 213, 0);
	border-left-color: #88b7d5;
	border-width: 88px;
	margin-top: -88px;
}
.arrow_box:before {
	border-color: rgba(194, 225, 245, 0);
	border-left-color: #c2e1f5;
	border-width: 94px;
	margin-top: -94px;
}