JSFiddle - React, Tailwind, and code Playground

HTML

<a id="deviant-art-icon" href="http://monstermmorpg.deviantart.com"><span></span></a>

CSS

#deviant-art-icon {
    background:url(http://static.monstermmorpg.com/images/csssprites/SocialIcons.png) no-repeat;
    display: inline-block;
    position: relative;
    text-indent: -9999px;
    width: 36px;
    height: 36px;
    background-position: -144px -0px;
}

#deviant-art-icon span {
    position: absolute;
    top:0;
    left:0;
    bottom:0;
    right:0;  background:url(http://static.monstermmorpg.com/images/csssprites/SocialIcons.png) no-repeat;
    background-position: -144px -36px;
	opacity: 0;
	-webkit-transition: opacity 0.5s;
	-moz-transition:    opacity 0.5s;
	-o-transition:      opacity 0.5s;
}

#deviant-art-icon:hover span {
	opacity: 1;
}