ul.browsers {
  list-style-type: none;
  text-align: center;
}

li.browser {
  display: inline-block;
}

a.browser {
  display: block;
  background: url(../images/browsers.png) no-repeat;
  overflow: hidden;
  text-align: center;
  line-height: 170px;
  text-decoration: none;
  color: #666;
  font-size: 10px;
  width: 100px;
  height: 100px;
}

a.chrome {
  background-position: -174px 20px;
}

a.firefox {
  background-position: -74px 20px;
}

a.safari {
  background-position: -374px 20px;
}

a.opera {
  background-position: -274px 20px;
}

a.ie {
  background-position: 24px 20px;
}