JSFiddle - React, Tailwind, and code Playground

HTML

<div id="bg-div">
  <img src="https://wallpaperbrowse.com/media/images/hd-wallpapers-1.jpg"></img>
  
</div>

CSS

#bg-div img {
        
        width: 100%;
        height: 100%;
        background-repeat: no-repeat;
        background-attachment:fixed;
        background-position: center;
        -webkit-background-size: cover;
        -moz-background-size: cover;
        -o-background-size: cover;
        background-size: cover;
       
    }
    #bg-div{
      position: fixed; 
    }