html, body{
    width: 100%;
    height: 100%;
    margin: 0px;
    border: 0;
    overflow: hidden;
    display: block;
}
body{
    background: black;
    color: white;
    font-family: 'Courier New', sans-serif;
    
    display: flex;
    align-items: center;
    flex-direction: column;
    overflow: hidden;
}
.canvas_div{
    margin-top: 2%;
    overflow: hidden;
}