Custom page loader with "JavaScript"

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.Get the "code"

*Press the Copy button and pate the code on your site. 

/** Body Overlay **/
body #load {
    display: block;
    height: 100%;
    overflow: hidden;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9901;
    opacity: 1;
    background-color: #263340;
    visibility: visible;
    -webkit-transition: all .35s ease-out;
    transition: all .35s ease-out;
body #load.loader-removed {
    opacity: 0;
    visibility: hidden;
.spinner-loader .load-wrap {
    background-image: url("insert gif animation link");
    background-position: center center;
    background-repeat: no-repeat;
    text-align: center;
    width: 100%;
    height: 100%;
<div id="load" class="spinner-loader"><div class="load-wrap"></div></div>
<script type="text/javascript">
    // Javascript function to display loader on page load
    document.addEventListener("DOMContentLoaded", function(event) {
        var $load = document.getElementById("load");
        var removeLoading = setTimeout(function() {
            $load.className += " loader-removed";
        }, 1200);

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