body{
    margin: 0;
    padding: 0;
    overflow: hidden;
}
#videoContainer{
    position: absolute;
    top: 0;
    height: 100vh;
    width: 100vw;
    z-index: 99999;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-bottom: 120px;
}
.firstC{
    position: absolute;
}