.detailbt{margin-top: 10px;}
.tube-1{height: 47px;width: 169px;position: absolute;margin-top: -58px;}
.tube-2{ margin-left: 679px;height: 27px;width: 71px;position: absolute;margin-top: -40px;}
@media only screen and (min-width: 769px) {
    .set-youtube{
        width: 740px;
        height: 460px;
        margin: 30px auto;
    }
}
@media only screen and (max-width: 768px) {
    .set-youtube{
        width: 660px;
        height: 415px;
        margin: 30px auto;
    }
}
.menu {
    background: #0e892e;
}