.sc_cn {
    position: relative;
    overflow: hidden;
    outline: none
}

.sc_m {
    display: inline-block;
    position: absolute;
    top: 0;
    left: 0;
    background-color: #fff;
}

.sc_r {
    position: absolute;
    top: 3%;
    right: 0;
    width: 16px;
    height: 94%
}

.sc_b {
    position: absolute;
    bottom: 0;
    height: 16px
}

.sc_r_t {
    position: absolute;
    top: 0;
    left: 0;
    height: 20px;
    width: 100%;
    cursor: pointer;
    text-align: center;
    font-size: 16px;
    color: #fff;
    line-height: 21px;
    text-indent: 1px;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none
}

.sc_r_c {
    position: absolute;
    top: 20px;
    left: 40%;
    width: 8px;
    background-color: #c1bfbf;
    border-radius: 8px
}

.sc_r_b {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 20px;
    width: 100%;
    cursor: pointer;
    text-align: center;
    font-size: 16px;
    color: #fff;
    line-height: 16px;
    text-indent: 1px;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none
}

.sc_r_c_bar {
    position: absolute;
    top: 0%;
    left: 0;
    width: 100%;
    background-color: #00bcd4;
    border-radius: 8px;
    cursor: pointer
}

.sc_b_l {
    position: absolute;
    left: 0;
    width: 20px;
    height: 100%;
    cursor: pointer;
    text-align: center;
    font-size: 16px;
    color: #fff;
    line-height: 14px;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none
}

.sc_b_c {
    position: absolute;
    left: 20px;
    bottom: 30%;
    height: 6px;
    background-color: #c1bfbf;
    border-radius: 8px
}

.sc_b_r {
    position: absolute;
    right: 0;
    width: 20px;
    height: 100%;
    cursor: pointer;
    text-align: center;
    font-size: 16px;
    color: #fff;
    line-height: 14px;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none
}

.sc_b_c_bar {
    position: absolute;
    left: 0%;
    height: 100%;
    background-color: #00bcd4;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer
}
/* 箭头隐藏 */
.sc_r_b,.sc_r_t{
    visibility: hidden;
}