body.noscroll {
    overflow-y: hidden;
    height: 100%;
    position: fixed;
    transform: translateX(-50%);
    left: 50%;
    width: 100%
}

.select-disable {
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -o-user-select: none;
    user-select: none
}

img.drag-disable {
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
    user-drag: none
}

.start-play {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    cursor: pointer
}

.playground {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0,0,0,.7);
    width: 100%
}

.playground .countdown {
    width: 800px;
    height: 500px;
    background-image: url(../assets/countdown.png);
    background-position: center;
    background-repeat: no-repeat;
    background-size: 100% auto;
    margin: 50px auto
}

.number {
    color: #000;
    font-size: 15rem;
    text-align: center;
    line-height: 500px
}

.play {
    width: 100%;
    height: 703px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url(../assets/game_bg.jpg);
    background-position: center top;
    background-repeat: no-repeat
}

.pool {
    width: 100%;
    height: 100%;
    margin: 0 auto;
    position: relative;
    overflow: hidden
}

.bomb,.packet {
    position: absolute;
    top: -100px;
    cursor: pointer;
    padding: 10px
}

.score {
    position: absolute;
    bottom: 150px;
    right: 5%;
    z-index: 10;
    width: 100px;
    height: 100px;
    line-height: 100px;
    text-align: center;
    border-radius: 50%;
    font-size: 60px;
    color: #000;
    background-color: #fff;
    background-size: 100% auto;
    background-repeat: no-repeat;
    background-position: center
}

.hide {
    display: none!important
}

@media screen and (max-width: 640px) {
    .playground .countdown {
        width:100vw;
        height: 100vh;
        background-image: url(../assets/countdown-mb.png);
        background-size: 90% auto;
        margin: 0 auto
    }

    .number {
        font-size: 30vw;
        margin-top: 0;
        line-height: 100vh
    }

    .play {
        width: 100vw;
        height: 100%;
        background-image: url(../assets/game-mb_bg.jpg);
        background-size: 100% auto
    }
}