.calumma-tab
{
font-size:0.9em;
  display:inline-block;
  margin-left:1px;
  margin-right:1px;
  padding:3px;
  border-top-left-radius:5px;
  border-top-right-radius:5px;
  border:1px solid #23282D;
  cursor:pointer;
}
.calumma-tab-back
{
  color:#eeeeee;
  background-color:#23282D;
  border-bottom:1px solid #23282D;
}
.calumma-tab-front
{
  background-color:#ffffff;
  color:#23282D;
  border-bottom-style:none;
  padding-bottom:5px;
}
.calumma-tab-content
{
  margin-top:-1px;
  border-top:1px solid #23282D;
  padding:5px;
  display:none;
}