JSFiddle - React, Tailwind, and code Playground

HTML

This live preview for <a id="someelem" href="http://en.wikipedia.org/">Wikipedia</a><div class="box"><iframe src="http://en.wikipedia.org/" width = "500px" height = "500px"></iframe></div> remains open on mouseover.

CSS

.box{
    //display: none;
    visibility:hidden;
    width: 100%;
    transition-delay: 2s;
    
}

a:hover + .box, .box:hover{
    visibility: visible;
    display: block;
    position: relative;
    z-index: 100;
    transition-delay: 0s;
    
    
}