JSFiddle - React, Tailwind, and code Playground

HTML

<img src="http://4.bp.blogspot.com/-JOqxgp-ZWe0/U3BtyEQlEiI/AAAAAAAAOfg/Doq6Q2MwIKA/s1600/google-logo-874x288.png" id="main-content-overlay" />

CSS

#main-content-overlay {

    z-index: 1;
    position: absolute;
    top: 0px;
    width: 100%;
    display: none;

}

JavaScript

var animateOverlay = function() {
        $("#main-content-overlay").fadeIn({queue: false, duration: 1000}).animate({top: "+=65px"}, 1000);
    };
    animateOverlay();