JSFiddle - React, Tailwind, and code Playground

HTML

<div id="target">Highlight Me</div>

CSS

#target { width: 300px; height: 100px; border: 1px solid red; }

JavaScript

jQuery.fn.highlight = function() {
    $(this).each(function() {
        var el = $(this);
        el.before("<div/>")
        el.prev()
            .width(el.width())
            .height(el.height())
            .css({
                "position": "absolute",
                "background-color": "#ffff99",
                "opacity": ".9"   
            })
            .fadeOut(500);
    });
}
    
$("#target").highlight();