body {
    margin: 0;
    overflow: hidden;
}

#canvas {
    width: 100%;
    height: 100%;
}

#menu {
    background-color: #fff;
    position: absolute;
    margin: 10px;
}

button {
    border: none;
    color: #fff;
    background-color: #2f3136;
    padding: 5px;
    border-radius: 5px;
    transition: ease-in-out .2s;
}

button:hover {
    background-color: #646466;
}

select {
    border: 2px solid #000;
    padding: 5px;
    border-radius: 5px;
}