Listing 41.5. Style przycisków do góry
article header {
    width: 800px;
    height: 200px;
    position: relative;
}

article a {
    display: block;
    width: 32px;
    height: 32px;
    position: absolute;
    top: 34px;
    right: 0;
    font-size: 11px;
    overflow: hidden;
}

article a span {
    background: url('img/przycisk.png') 0 0 no-repeat;
}

article a span:hover  {
    background: url('img/przycisk.png') -32px 0 no-repeat;
}