#maze{
    width: 1200px;
    height: 800px;
    touch-action: none;
    
}
/**/
html, body{
    height: 100%;
    overflow-x: hidden;
    margin-left: 10px;
    margin-top: 0;
    padding: 0;
}

#startB{
    position:absolute;
    top: 100px;
    left: 100px;
    width: 100px;
    height: 40px;
}