.u-flyer {
    display: block;
    width: 50px;
    height: 50px;
    border-radius: 50px;
    position: fixed;
    top: 520px;
    z-index: 99999;
}

#msg {
    position: fixed;
    top: 525px;
    right: 6px;
    z-index: 999999;
    width: 15px;
    height: 15px;
    background: url("../images/addcar.png") no-repeat;
    display: none;
    animation: addcar 0.6s ease-in forwards;
    -webkit-animation: addcar 0.6s ease-in forwards;
}

@-webkit-keyframes addcar {
    0% {
        opacity: 1;
        top: 525px;
    }
    100% {
        opacity: 0;
        top: 500px;
    }
}

@keyframes addcar {
    0% {
        opacity: 1;
        top: 525px;
    }
    100% {
        opacity: 0;
        top: 500px;
    }
}