$(document).ready(function () {
    $(".tooltips").hover(
            function () { $(this).contents("div:last-child").css({ display: "block", opacity: 0.8 }); },
    //function () { $(this).contents("div:last-child").css({ display: "block", opacity: 0.8 }); },
        function () { $(this).contents("div:last-child").css({ display: "none" }); }
    );
    $(".tooltips").mousemove(function (e) {
        var mousex = e.pageX + 10;
        var mousey = e.pageY + 10;
        $(this).contents("div:last-child").css({ top: mousey, left: mousex });
    });
});