JSFiddle - React, Tailwind, and code Playground

by Alexey Ukolov

HTML

<label>
  <span>111</span>
</label>

CSS

label {
  display: block;
  background-color: black;
  position: relative;
}

label::after {
  content: "";
  position: absolute;
  width: 100%;
  top: 100%;
  height: 100%;
  background-color: green;
  left: 0;
}

span {
  color: red;
}