JSFiddle - React, Tailwind, and code Playground

HTML

<div id="bg_img" classid="blink_me"></div>

CSS

/*regular way of doing it*/

body{
    background-color: #0F0;
    margin: 0;
    padding: 0;
}

#bg_img{
    filter: blur(50px);  /*Set amount of blur, px units are bad when re-scaling the window size */
  	-webkit-filter: blur(50px); /*Set amount of blur, px units are bad when re-scaling the window size */
    position:absolute;
    width: 100%;
    height: 100%;
    background-image: url(http://www.patan77.com/wallpaper/3d_cube_explosion_patan77.jpg); /*background image*/
	background-repeat:no-repeat;
	background-size: cover;
	background-position: center center;
    
}