JSFiddle - React, Tailwind, and code Playground

by Abdul Ahmad

HTML

<div class="hexagon"></div>

CSS

.hexagon {
  position: relative;
  width: 200px; 
  height: 115.47px;
  background-color: #000000;
  margin: 57.74px 0;
}

.hexagon:before,
.hexagon:after {
  content: "";
  position: absolute;
  width: 0;
  border-left: 100px solid red;
  border-right: 100px solid green;
}

.hexagon:before {
  bottom: 100%;
  // border-bottom: 57.74px solid #000000;
}

.hexagon:after {
  top: 100%;
  // border-top: 57.74px solid #000000;
}