.stc-skip-link {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
    background: #000;
    color: #fff;
    padding: 1em;
    z-index: 10000;
    text-decoration: none;
}

.stc-skip-link:focus {
    left: 1em;
    top: 1em;
    width: auto;
    height: auto;
    font-size: 1.25em;
}