#screen-button {
    font-size: 14px;
    font-weight: 400;
    font-family: monospace;
    letter-spacing: 3px;
    line-height: 16px;
    text-decoration: none;

    display: none;
    padding: 0.5rem 1.5rem;
    margin: 0px;

    position: fixed;
    z-index: 1010;

    transition: display 0.6s;

    background-color: rgba(0, 100, 0, 0.5);
    color: #fafafa;
}

#screen-button:hover,
#screen-button:focus,
#screen-button.active {
    text-decoration: underline;
    opacity: 0.925;
}

#screen-button.top {
    top: 1rem;
}

#screen-button.right {
    right: 1rem;
}

#screen-button.bottom-0 {
    bottom: 1rem;
}

#screen-button.bottom-1 {
    bottom: calc(1rem + 60px + 1rem);
}

#screen-button.left {
    left: 1rem;
}