JSFiddle - React, Tailwind, and code Playground

HTML

<div id="leftcolumn">
      <ul>
        <li><a href="http://google.com">google</a></li>
        <li><a href="http://google.com"><img src="http://cso.cz/wpimages/cz2.gif"></a></li>
      </ul>
</div>

CSS

div#leftcolumn ul a:hover{ 
  background-color: #F8F8F8; 
  color: Black; 
  border-bottom: 1px solid Black; 
  border-top: 1px solid black; 
}