html body{
    margin: 0;
    padding: 0;
    overflow: hidden;
    position: absolute;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    background-color: #fff;
    -webkit-user-select: none;
    -webkit-text-size-adjust: 100%;
    -webkit-overflow-scrolling: touch;
}