.volumeController {
    display: flex;
    position: absolute;
    width: 16px;
    height: 70px;
    left: 0;
    bottom: 18px;
    z-index: 5;
    align-items: center;
    border-radius: 2px;
    background: #fff;
    box-shadow: 0 0 10px #ccc;
    user-select: none;
    .volumeBar {
        position: relative;
        width: 4px;
        height: 60px;
        border-radius: 4px;
        margin: 0 auto;
        background: #cdcdcd;
        .volumeBarProcess {
            position: absolute;
            left: 0;
            bottom: 0;
            width: 4px;
            height: 0;
            border-radius: 4px;
            background: #e12828;
        }
    }
    .pointer{
        left: 50%;
        bottom: 0;
    }
}