$(function () {
        $('.hide').fadeOut("fast");

        $( ".fourth" ).hover(
            function() {
                $( this ).find('.hide').fadeIn("slow"); ;
            }, function() {
                $( this ).find('.hide').fadeOut("slow");
            }

        );
        <div class="fourth">
            <div class="products">
                <h4 class="hide"><a href="#">Laern More</a></h4>
            </div>
        </div>