body{
    overflow: hidden;
    user-select: none;
}
#screen{
    position: absolute;
    left: 0px;
    top: 0px;
    width: 100vw;
    height: auto;
}
#background{
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translateX(-50%);
    width: 100vw;
    height: 100vh;
}
#container{
    position: absolute;
    left: 0px;
    top: 0px;
    width: 100vw;
    height: 10vh;
    border: 1px black solid;
    background-color: black;
    opacity: 0.5;
}
#title{
    position: absolute;
    left: 10%;
    top: 50%;
    transform: translateY(-50%);
    font-size: 250%;
    color: white;
}
#setting{
    position: absolute;
    left: 80%;
    top: 50%;
    transform: translateY(-50%);
    height: 80%;
}
#board{
    position: absolute;
    left: 50%;
    top: 10vh;
    transform: translateX(-50%);
    width: 100vw;
    height: 90vh;
    border: transparent;
}