JSFiddle - React, Tailwind, and code Playground

HTML

<div class="block">

</div>
<div class="block-help">

</div>

CSS

body {
  width:100%;
  height:1000px;
  background-color:white;
  margin:0;
}
.block {
  width:100%;
  height:400px;
  background-image:url("https://w-dog.ru/wallpapers/5/6/306565792330301.jpg");
  background-size:100% auto;
  background-repeat:no-repeat;
  background-color:red;
}
.block-help {
  width:100%;
  height:400px;
  background-color:orange;
}