body { 
    background-color: white;
    color: black;
    font: 1.2em Helvetica Neue, Helvetica, Arial, sans-serif;
    padding: 10;
    margin: 10;
}

canvas {
    display: block; 
    margin: 0 auto;
    padding-left: 0; 
    padding-right: 0; 
    border-width: 1px;
}

a:link { color: black; text-decoration: none; } 
a:visited { color: black; text-decoration: none; } 
a:hover { color: green; text-decoration: none; } 
a:active { color: teal; text-decoration: none; }