CSS- Highlight a div when the id is linked to using an anchor?

You need to use the :target pseudo-class:

:target {   background-color: #ffa;}

javascript css html anchor highlight

You can do this in JavaScript. Refer to How to get the anchor from the URL using jQuery? on how to get the anchor from URL and then it can be something simple like

document.getElementById(hash).style.backgroundColor="Yellow";

javascript css html anchor highlight

JavaScript can be used to dynamically add/change the class of the div:

If you have:

<div id="test"></div>

Javascript function, executed by the click of the anchor:

document.getElementById("test").className += " highlighted";

Result:

<div id="test" class=" highlighted"></div>

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