html,
body {
    height: 100%;
    margin: 0;
    overscroll-behavior: none;
    -webkit-overflow-scrolling: touch;
}

body {
    background: rgb(237, 173, 55) repeat center center fixed;
    background-size: auto;
    text-align: center;
    font-family: monospace;
    font-size: x-large;
}

canvas {
    border: 2px solid #222;
    display: block;
    margin: 0 auto;
    background: rgb(237, 173, 55);
}

button {
    margin-top: 10px;
    padding: 6px 12px;
}

hr {
    border: none;
    height: 6px;
    background: rgb(127.5, 127.5, 127.5);
    margin-top: 0;
    margin-bottom: 10px;
}

nav {
    display: flex;
    align-items: center;
}

nav img {
    width: 64px;
    height: 64px;
    vertical-align: middle;
}