body, input, button {
    font: 1.25em/1.5 sans-serif;
}
body {
    margin: 2em auto;
    padding: 0 1em;
    max-width: 50em;
}
h1, h2, h3 {
    line-height: 1.5;
}
ul.topnav {
    font: 2em/2 sans-serif;
    margin: 0;
    padding: 0;
    max-width: none;
    list-style-type: none;
    overflow: hidden;
    background-color: black;
}
ul.topnav li {
    float: left;
}
ul.topnav li.right {
    float: right;
}
ul.topnav li a {
    padding: 0em 0.5em;
    display: block;
}
button {
    background-color: black;
    border: none;
}
ul.topnav li a, button {
    color: white;
    text-decoration: none;
}
button:disabled {
    background-color: silver;
}
ul.topnav li a:hover:not(.active), button:enabled:hover {
    background-color: darkred;
}
ul.topnav li a.active, ul.topnav li a:hover:active, button:enabled:active {
    background-color: #E41339;
}
canvas {
    image-rendering: optimizeSpeed;
    image-rendering: -moz-crisp-edges;
    image-rendering: -o-crisp-edges;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: -webkit-crisp-edges;
    image-rendering: optimize-contrast;
    image-rendering: crisp-edges;
    image-rendering: pixelated;
}
@media screen and (max-width: 719px) {
    ul.topnav {
        font: 1.5em/1.75 sans-serif;
        -moz-column-count: 2;
        -moz-column-gap: 0px;
        -webkit-column-count: 2;
        -webkit-column-gap: 0px;
        column-count: 2;
        column-gap: 0px;
    }
    ul.topnav li, ul.topnav li.right {
        float: none;
    }
}
@media screen and (max-width: 719px), @media print {
    body {
        max-width: none;
    }
}