JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#">Check!</a>

CSS

a{
    background-color:#fff;
    color:orange;
    font-family:sans-serif;
    padding:10px 0;
    text-decoration:none;
    -webkit-transition:background-color ease-in-out .5s;
       -moz-transition:background-color ease-in-out .5s;
            transition:background-color ease-in-out .5s;
}

a:hover{
    background-color:transparent;
    text-decoration:none;
}

a:before{
    content:url(http://swwweet.com/img/check1.png);
    position:relative;
    z-index:-1;
}