.css, .html, .intcheck, .link, .rss, .unicorn { display: inline-block; background: url('w3c.png') no-repeat; overflow: hidden; text-indent: -9999px; text-align: left; }
.css { background-position: -10px -0px; width: 88px; height: 31px; margin: 10px 5px;}
.html { background-position: -108px -0px; width: 88px; height: 31px; margin: 10px 5px;}
.intcheck { background-position: -10px -41px; width: 88px; height: 31px; margin: 10px 5px;}
.link { background-position: -108px -41px; width: 88px; height: 31px;margin: 10px 5px; }
.rss { background-position: -10px -82px; width: 88px; height: 31px; margin: 10px 5px;}
.unicorn { background-position: -108px -82px; width: 88px; height: 31px; margin: 10px 5px;}

.css-blue, .html-blue, .intcheck-blue, .link-blue, .rss-blue, .unicorn-blue { display: inline-block; background: url('w3c-blue.png') no-repeat; overflow: hidden; text-indent: -9999px; text-align: left; }
.css-blue { background-position: -10px -0px; width: 88px; height: 31px; margin: 10px 5px; }
.html-blue { background-position: -108px -0px; width: 88px; height: 31px; margin: 10px 5px; }
.intcheck-blue { background-position: -10px -41px; width: 88px; height: 31px; margin: 10px 5px; }
.link-blue { background-position: -108px -41px; width: 88px; height: 31px; margin: 10px 5px; }
.rss-blue { background-position: -10px -82px; width: 88px; height: 31px; margin: 10px 5px; }
.unicorn-blue { background-position: -108px -82px; width: 88px; height: 31px; margin: 10px 5px; }