.isheader {
    position: fixed;
    top: 0;
    z-index: 9;
    width: calc(100% - 40px);
    padding: 0 20px;
    background-color: cadetblue;
    height: 1rem;
    line-height: 1rem;
    color: white;
    font-size: 0.4rem;
    display: flex;
    justify-content: space-between;
}
.is-span-header {
    display: inline-block;
}
.is-span-header.go{
    width: 0.6rem;
    height: 0.6rem;
    background-image: url(../images/u39.png);
    background-repeat: no-repeat;
    background-size: 100%;
    margin-top: 8px;
}
.music-t{
    position: relative;
    margin-top: 1.03rem;
}
.title_car{
    text-align: center;
    font-weight: bold;
    font-size: 18px;
    line-height: 35px;
    background: cadetblue;
}
.mt-10{
    margin-top: 10px;
}