.test {
    display: none;
    width: 8rem;
    height: 2rem;
    margin: 2rem auto;
    border: 1px solid #ddd
}

@keyframes select-scroll-showup {
    0% {
        bottom: -273px
    }

    to {
        bottom: 0
    }
}

@keyframes select-scroll-hidedown {
    0% {
        bottom: 0
    }

    to {
        bottom: -273px
    }
}

.picker {
    /*position: fixed;*/
    left: 0;
    top: 0;
    z-index: 100;
    width: 100%;
    height: 100%;
    overflow: hidden;
    text-align: center;
    font-size: 14px;
    background-color: rgba(37,38,45,.4)
}

    .picker .picker-panel {
        /*position: absolute;*/
        z-index: 600;
        width: 100%;
        height: 273px;
        background: #fff
    }

        .picker .picker-panel.up {
            /*bottom: 0;*/
            animation: select-scroll-showup .3s 0s linear
        }

        .picker .picker-panel.down {
            bottom: -273px;
            animation: select-scroll-hidedown .3s 0s linear
        }

        .picker .picker-panel .picker-choose {
            display: none;
            position: relative;
            height: 60px;
            color: #999
        }

        .picker .picker-panel .cancel, .picker .picker-panel .confirm {
            position: absolute;
            top: 6px;
            padding: 16px;
            font-size: 14px
        }

        .picker .picker-panel .confirm {
            right: 0;
            color: #007bff
        }

        .picker .picker-panel .cancel {
            left: 0
        }

        .picker .picker-panel .picker-title {
            margin: 0;
            line-height: 60px;
            font-weight: 400;
            text-align: center;
            font-size: 18px;
            color: #333
        }

        .picker .picker-panel .picker-content {
            position: relative;
            top: 20px
        }

        .picker .picker-panel .mask-bottom, .picker .picker-panel .mask-top {
            z-index: 10;
            width: 100%;
            height: 88px;
            pointer-events: none;
            transform: translateZ(0)
        }

        .picker .picker-panel .mask-top {
            position: absolute;
            top: 0;
            background: linear-gradient(0deg,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8))
        }

        .picker .picker-panel .mask-bottom {
            position: absolute;
            bottom: 1px;
            background: linear-gradient(180deg,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8))
        }

        .picker .picker-panel .border-bottom-1px:after, .picker .picker-panel .border-bottom-1px:before, .picker .picker-panel .border-top-1px:after, .picker .picker-panel .border-top-1px:before {
            content: "";
            display: block;
            position: absolute;
            transform-origin: 0 0
        }

        .picker .picker-panel .border-bottom-1px:after {
            /*border-bottom: 1px solid #ebebeb;*/
            left: 0;
            bottom: 0;
            transform-origin: 0 bottom;
            width: 300%;
            transform: scale(.5) translateZ(0)
        }

        .picker .picker-panel .border-top-1px:before {
            width: 300%;
            transform: scale(.5) translateZ(0);
            /*border-top: 1px solid #ebebeb;*/
            left: 0;
            top: 0;
            transform-origin: 0 top
        }

        .picker .picker-panel .wheel-wrapper {
            display: -ms-flexbox;
            display: flex;
            padding: 0 16px
        }

        .picker .picker-panel .wheel {
            margin: 5px;
            /*border: 1px solid #00000038;*/
            border: 1px solid #F2F4F7;
            padding: 10px;
            border-radius: 8px;
            -ms-flex: 1;
            flex: 1;
            -ms-flex-preferred-size: -8e;
            flex-basis: -8e;
            width: 1%;
            height: 193px;
            overflow: hidden;
            font-size: 20px
        }

        .picker .picker-panel .wheel-scroll {
            padding: 0;
            margin-top: 68px;
            line-height: 36px;
            list-style: none
        }

        .picker .picker-panel .wheel-item {
            text-align: center;
            list-style: none;
            height: 36px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            color: #101828;
            font-size: 16px;
            line-height: 28px;
            font-weight: 600;
        }

    .picker .picker-footer {
        height: 20px
    }