#body{
    background-image: url("images/background.gif");
    height : 100%;
    width : 100%;
    margin: 0 0;
}
#screen{
    text-align: center;
    height : 100%;
    width : 100%;
    margin: 0 0;
}
#canvas{
    margin: 0 0;
}

#top-left-btn-group{
    text-align: left;
    margin: 10px;
    position: fixed;
}

#top-right-btn-group{
    margin: 10px;
    right: 0px;
    text-align: right;
    position: fixed;
}

button{
    padding: 5px;
    font-size: 20px;
    background: rgba(29, 75, 241, 0.26);
    border: 10px double var(--bs-btn-bg);
    font-family: 'Space Mono', monospace;
    font-weight: bold;
    color: white;
    opacity: 0.84;
}

button:hover {
    background: rgba(29,76,241);
    opacity: 1;
  }