JSFiddle - React, Tailwind, and code Playground

by Ersin Bilgin

HTML

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

CSS

.arrow_box {
	position: relative;
	background: #88b7d5;
    height: 100px;
    margin-top: 100px;
}
.arrow_box:after {
	bottom: 100%;
	left: 50%;
	border: solid transparent;
	content: " ";
	height: 0;
	width: 0;
	position: absolute;
	pointer-events: none;
	border-color: rgba(136, 183, 213, 0);
	border-bottom-color: #88b7d5;
    border-top-color: #F8b7d5;
    border-left-color: #08b7d5;
    border-right-color: #08b705;
	border-width: 30px;
}

.arrow_box:before {
	top: 100%;
	left: 50%;
	border: solid transparent;
	content: " ";
	height: 0;
	width: 0;
	position: absolute;
	pointer-events: none;
	border-color: rgba(136, 183, 213, 0);
	border-top-color: #88b7d5;
	border-width: 30px;
	margin-left: -30px;
}