*{margin: 0;padding: 0}
html,body{height: 100%;width: 100%}

body{
    background: #000;
}
img{
    display: block;
    border: none;
    width: 7.5rem;
}
.box{
    margin: 0 auto;
    position: relative;
    width: 7.5rem;
    height: 13.34rem;
    overflow: hidden;
}
.box .btn,.box .btn2{
    display: block;
    position: absolute;
    top: 6.9rem;
    left: 3.9rem;
    width: 2.99rem;
    height: 0.95rem;
    background: url("../img/btn.png") no-repeat center;
    background-size: 100% 100%; 
    outline: none;
    border: none;
}
.hotgame .btn{
    display: block;
    position: absolute;
    left: 0.54rem;
    width: 1.05rem;
    height: 0.5rem;
    background: url("../img/xaizai.png") no-repeat center;
    background-size: 100% 100%; 
    outline: none;
    border: none;
}
.btn3{
    top: 2.84rem;
}
.btn4{
    top: 6.6rem;
}
.btn5{
    top: 10.4rem;
}
.img-xiazai{
    width: 7.05rem;
    margin: 0 auto;
}
.img-game{
    width: 7.25rem;
    margin: 0 auto;
}
.hotgame{
    position: relative;
    width: 7.5rem;
    height: 11.74rem;
    background:url("../img/bottom.jpg") no-repeat center;
    background-size: 100% 100%;
}
@-webkit-keyframes swing {
    20% {
    -webkit-transform: rotate3d(0, 0, 1, 15deg);
    transform: rotate3d(0, 0, 1, 15deg);
    }

    40% {
    -webkit-transform: rotate3d(0, 0, 1, -10deg);
    transform: rotate3d(0, 0, 1, -10deg);
    }

    60% {
    -webkit-transform: rotate3d(0, 0, 1, 5deg);
    transform: rotate3d(0, 0, 1, 5deg);
    }

    80% {
    -webkit-transform: rotate3d(0, 0, 1, -5deg);
    transform: rotate3d(0, 0, 1, -5deg);
    }

    to {
    -webkit-transform: rotate3d(0, 0, 1, 0deg);
    transform: rotate3d(0, 0, 1, 0deg);
    }
}

@keyframes swing {
    20% {
    -webkit-transform: rotate3d(0, 0, 1, 15deg);
    transform: rotate3d(0, 0, 1, 15deg);
    }

    40% {
    -webkit-transform: rotate3d(0, 0, 1, -10deg);
    transform: rotate3d(0, 0, 1, -10deg);
    }

    60% {
    -webkit-transform: rotate3d(0, 0, 1, 5deg);
    transform: rotate3d(0, 0, 1, 5deg);
    }

    80% {
    -webkit-transform: rotate3d(0, 0, 1, -5deg);
    transform: rotate3d(0, 0, 1, -5deg);
    }

    to {
    -webkit-transform: rotate3d(0, 0, 1, 0deg);
    transform: rotate3d(0, 0, 1, 0deg);
    }
}
@-webkit-keyframes tada {
    from {
        -webkit-transform: scale3d(1, 1, 1);
        transform: scale3d(1, 1, 1);
    }

    10%,
    20% {
        -webkit-transform: scale3d(0.9, 0.9, 0.9) rotate3d(0, 0, 1, -3deg);
        transform: scale3d(0.9, 0.9, 0.9) rotate3d(0, 0, 1, -3deg);
    }

    30%,
    50%,
    70%,
    90% {
        -webkit-transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, 3deg);
        transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, 3deg);
    }

    40%,
    60%,
    80% {
        -webkit-transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, -3deg);
        transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, -3deg);
    }

    to {
        -webkit-transform: scale3d(1, 1, 1);
        transform: scale3d(1, 1, 1);
    }
    }

    @keyframes tada {
    from {
        -webkit-transform: scale3d(1, 1, 1);
        transform: scale3d(1, 1, 1);
    }

    10%,
    20% {
        -webkit-transform: scale3d(0.9, 0.9, 0.9) rotate3d(0, 0, 1, -3deg);
        transform: scale3d(0.9, 0.9, 0.9) rotate3d(0, 0, 1, -3deg);
    }

    30%,
    50%,
    70%,
    90% {
        -webkit-transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, 3deg);
        transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, 3deg);
    }

    40%,
    60%,
    80% {
        -webkit-transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, -3deg);
        transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, -3deg);
    }

    to {
        -webkit-transform: scale3d(1, 1, 1);
        transform: scale3d(1, 1, 1);
    }
}
.swing {
    -webkit-transform-origin: top center;
    transform-origin: top center;
    -webkit-animation-name: swing;
    animation-name: swing;
}
.tada {
    -webkit-animation-name: tada;
    animation-name: tada;
}
.animated {
    -webkit-animation-duration: 1s;
    animation-duration: 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
    animation-iteration-count:infinite;
    -webkit-animation-iteration-count:infinite;
}