#container {
    width: 100vw;
    height: 100vh;
    position: relative;
    z-index: 10;
    /*overflow: hidden;*/
    background: transparent;
}


.scroll-content > section{
    width: 100vw;
    height: 100vh;
    position: relative;
    overflow: hidden;
}


.scroll-content > section:nth-child(even){
    /*background: red;*/
}



.posNum {
    position: fixed;
    left: 100px;
    top: 100px;
    width: 300px;
    height: 50px;
    /*margin: -25px 0 0 -150px;*/
    background: rgba(0,0,0,0.6);
    color: #fff;
    font-size: 20px;
    font-weight: bold;
    text-align: center;
    line-height: 50px;
    z-index: 9999;
}
.startPoint{
    width: 50px;
    height: 50px;
    position: fixed;
    right: 100px;
    bottom: 100px;
    z-index: 899998989;
    background: black;
    border: none;
    outline: none;
    cursor: pointer;
}