JSFiddle - React, Tailwind, and code Playground

HTML

<div class="initial background" id="bg0"></div>
<div class="about bgwrapper">
    <h1 id="title">About</h1>
    <div>
        <p id="about">stuff</p>
    </div>
    <div id="bg1" class="background"></div>
</div>

CSS

.background{
    position:fixed;
    top:0;left:0;
    width:100%;height:100%;
    display:none;
    z-index:-1;
}
.bgwrapper:hover>.background,.initial.background{
    display:block;
}
.initial.background:hover{
    display:block!important;
}
.background:hover{
    display:none!important;
}
#bg0{
    background: -moz-linear-gradient(left, #FF0000 0%, #FF9900 10%, #FFFF00 16.666%, #CCFF00 20%, #32FF00 30%, #00FF00 33.333%, #00FF65 40%, #00FFFF 50%, #00FFFF 50%, #0065FF 60%, #0000FF 66.666%, #3300FF 70%, #CB00FF 80%, #FF00FF 83.333%, #FF0098 90%, #FF0004 100%);

}

#bg1{
    background: -moz-linear-gradient(left center, #FF0000, #000000) repeat scroll 0 0 transparent
}