JSFiddle - React, Tailwind, and code Playground

by Chuan Shao

HTML

<div class="parent">
  <div class="container1 container"></div>
  <div class="container2 container"></div>
</div>

CSS

*
{
    margin:0;padding:0;
}
.parent {
  display: flex;
  justify-content: center;
}
div.container
{
    width: 50vw; 
    height: 50vw;
    max-height: 100vh;
    max-width: 100vh;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: 50%;
}
.container1 {
  background-color: red;
  background-image: url('https://img3.doubanio.com/lpic/s4554820.jpg');
}
.container2 {
  background-color: green;
  background-image: url('http://pagead2.googlesyndication.com/simgad/10067268081911489671');
}