* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

a {
    display: block;
}

hr {
    color: black;
    height: 1px;
    width: 70ch;
    margin-left: 5px;
}

#game {
    position: absolute;
    width: 100%;
    height: 100vh;
    background-color: #eee;
    margin: 0;
    padding: 0;
    z-index: -1;
    top: 0;
    left: 0;
}