<?php if ( is_page( 'home' )) { ?> <div id="top-cta">

#top-cta {
background-color: #3bb618;
text-align: center;
padding: 11px 0 11px;
text-transform: uppercase;
position: fixed;
bottom: 0;
width: 100%;
z-index: 9997;
}
#top-cta a {
color: #fff;
font-size: 28px;
font-weight: 700;
display: inline-block;
}

jQuery(document).ready(function() {

var load_flag = true;
jQuery(document).scroll(function() {

    var mywindow = jQuery(window);
    var mypos = mywindow.scrollTop();
    var up = false;
    var newscroll;
    mywindow.scroll(function () {
        newscroll = mywindow.scrollTop();
        if (newscroll > mypos && !up) {
            jQuery('#top-cta ').fadeOut();
            up = !up;
            console.log(up);
        } else if(newscroll < mypos && up) {
            jQuery('#top-cta ').fadeIn();
            up = !up;
        }
        mypos = newscroll;
    });
});
});