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<!--Html-->
<!-- scroll top start -->
	<div id="scroll-top" title="Scroll To Top">
	    <i class="fa fa-angle-up"></i>
	</div>
	<!-- scroll top end -->

*** csss**
/* ==============================================
    3|***Scroll to top CSS***
================================================= */
#scroll-top {
    position: fixed;
    z-index: 99;
    color: #fff;
    font-size: 20px;
    right: 2%;
    bottom: 10%;
    cursor: pointer;
    padding: 5px 14px;
    background: #147E90;
    -webkit-transition: .3s;
    -o-transition: .3s;
    transition: .3s;
    display: none;
    border-radius: 4px
}

#scroll-top:hover {
    bottom: 11%;
    opacity: 1;
}


// js

/*scroll to top js*/
        scroll.on('click', function() {
            $('html , body').animate({
                scrollTop: 0
            }, 900);
        });

        $(window).on('scroll', function() {
            if ($(this).scrollTop() > 300) {
                scroll.fadeIn();
            } else {
                scroll.fadeOut();
            }
        });