ul#tag_cloud
{
  list-style: none;
}

ul#tag_cloud li
{
  list-style: none;
  display: inline;
}

ul#tag_cloud li.tag_popularity_1
{
  font-size: 80%;
}

ul#tag_cloud li.tag_popularity_2
{
  font-size: 120%;
}

ul#tag_cloud li.tag_popularity_3
{
  font-size: 150%;
}

ul#tag_cloud li.tag_popularity_4
{
  font-size: 180%;
}