javascript - Change background-image of a div everytime page refresh -


according i've seen in internet should able change background-image of div everytime page refresh javascript script. it's not working reason. appreciated.

this html

<div class="home-intro show-for-medium-up" id="home-intro"> </div>

this css

.home-intro{   background-image: url("../images/1.png");   background-color:grey;   height:500px;   color:$white;   text-align:center;   }

this js

<script>   function randomimage(){   var images = [    '../images/1.png',    '../images/2.png',    '../images/3.png'];   var size = images.length;   var x = math.floor(size * math.random());   console.log(x);   var element = document.getelementsbyclassname('home-intro');   console.log(element);   element[0].style["background-image"] = "url("+ images[x] + ") no-repeat;"; }  document.addeventlistener("domcontentloaded", randomimage);

the issue trying set no-repeat attribute of background-image property. no-repeat attribute of background property.

http://codepen.io/kevinfargason/pen/ejeema


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