* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    outline: 0;
}

body {
    background: black;
}

canvas#game {
    position: absolute;
    border: 1px solid rgba(255, 255, 255, .33);
    margin: 0 auto;
    background: black;
    z-index: 1;
}

.container {
    position: absolute;
    top: calc(50vh - 150px);
    left: calc(50% - 150px);
    margin: 0 auto;
    text-align: center;
}

.options {
    position: absolute;
    margin: 0.5rem;
    color: #aaa;
    right: 0.5rem;
    top: 0.5rem;
}

.hud {
    position: absolute;
    z-index: 5;
    font-size: 8px;
}

.hud #score {
    color: white;
    font-family: monospace;
    position: absolute;
    padding: 5px;
    text-align: right;
    top: 0;
    right: -300px;
}