JSFiddle - React, Tailwind, and code Playground

HTML

<link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">

<div class="home">
    <div class="center">
        <a class="arrow fa fa-long-arrow-down fa-3x" href="#"></a>
    </div>
</div>

CSS

.home {
    margin: 0 auto;
    height: 100%;
    width: 100%;
    position: relative;
    margin: 0 auto;
    max-width: 960px;
}

.home .center {
    position: absolute;
    bottom: 0;
    top:30px;
    text-align: center;
    width:100%;
}
.arrow
     left: 0;
    right: 0;
    
    
}