.onoff {
    margin-left: 50px;
}
.onoff::before{
    content: "";
    display: block;
    width: 40px;/* 滑动范围设置 */
    height: 24.5px;
    border: 1px solid rgb(227, 202, 202);
    background-color: rgb(179, 176, 176);
    border-radius: 25px;/* 圆角设置 */
    margin-left: -23px;/* 位置的调整 */
    margin-top: -4px;
}

.onoff::after{
    content: "";
    display: block;
    width: 25px;/* 按钮大小 */
    height: 25px;
    background-color: rgb(250, 250, 250);
    margin-left: -22px;/* 按钮位置调整 */
    margin-top: -26px;
    transition: margin 0.2s ease-in 0.2s;/* 变化速度与方式 */
    border-radius: 25px;/* 圆角设置 */
}
.onoff:checked::before{
    background-color: rgb(5, 184, 67);
}

.onoff:checked::after{
    margin-left:-7px;
}