/**index.wxss**/
page{
    background: #fff !important;
}
.container {
    height: 100%;
    width: 100%;
    background: #fff;
}
.start{
    width: 100rpx;
    height: 100rpx;
    border-radius: 100rpx;
    position: fixed;
    left: 50%;
    top: 50%;
    margin: -50rpx 0 0 -50rpx;
    background: #ff4838;
    -webkit-animation: loading 0.5s linear infinite;
}