JSFiddle - React, Tailwind, and code Playground

HTML

<div class="myDiv">
    Hello there how are you?
</div>

CSS

.myDiv {
  position: relative;
  z-index: 5;
  height: 250px;
  width: 300px;
  color: #000;
  font-size: 400%;
  padding: 20px;
}

.myDiv::before {
    content: "";
    position: absolute;
    z-index: -1;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: url(//www.wonderbackgrounds.com/girly/backgrounds/girly_background_02.gif) center center;
    opacity: .4;
}