JSFiddle - React, Tailwind, and code Playground

HTML

<div class="bgimg">
    <a href="http://site.com"><img src="http://livelyn.net/uploads/posts/2012-07/1342439170_00.jpg"></a>
        
    <span><a href="http://site2.com"><img src="http://livelyn.net/templates/lwall/dleimages/plus_fav.gif"></a></span>
</div>

CSS

.bgimg {
    width:169px;
    height:132px;
    border:1px solid red;
}

.bgimg span img {
    display:none;
}

.bgimg:hover {
    border:1px solid green;
}

.bgimg:hover .bgimg span img {
    display:block;
}