JSFiddle - React, Tailwind, and code Playground
HTML
<a id="myLink">Click Me </a>
<div id="myDiv"></div>
CSS
div { height: 200px; }
JavaScript
$("#myLink").click(function() {
// ^ Attach a function on click event of an element with id="mylink"
//Change the css of a element with id="myDiv"
$("#myDiv").css("backgroundImage", "url(http://www.google.com/logos/2012/spring12-hp.jpg)");
// Note ^: In jQuery, the parameters with "-" as define that way
// But of course .css() supports "-" also, but make a habit of doing in camel-case
});