body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color:  #C8C8C8;
    overflow: hidden;
}
.container {
    text-align: center;
}

h1 {
    font-family: monospace;
}

a {
    text-decoration: none;
    color: cadetblue;
    font-size: large;
}

a:hover {
    color: darkgreen;
}

canvas {
    display: block;
    margin: 0 auto;
    box-shadow: 0 0 10px rgba(0,0,0,0.2);
}