JSFiddle - React, Tailwind, and code Playground

by TheCrossCarrier

HTML

<div class="container">
  <div class="text">Текст</div>
</div>

CSS

* {
  margin: 0;
  padding: 0;
}

.container {
  width: 200px;
  height: 250px;
  border: 3px solid red;
  background-color: rgba(0, 0, 0, 0.5);
}
/* 
.container::before {
  content: '';
  
  position: absolute;
  width: 200px;
  height: 250px;
  background-color: black;
  opacity: 0.5;
  z-index: -999;
  
} */

.text {
  color: red;
}