* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;

    font-family: 'Overpass Mono', monospace;
}

html, body {
    height: 100%;
}

#menu {
    position: fixed;
    right: 1em;
    bottom: 1em;
    z-index: 10;
}

#menu_button {
    display: inline;
    cursor: pointer;
}

.activity {
    display: inline;
    opacity: 1;
}
.activity.inactive {
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

#footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    text-align: right;
    z-index: 10;
}