.tabset_pane {
  padding-top: 2.5em;
}

.tabset_tab {
  float: left;
  background: whitesmoke;
}

.tabset_open, .tabset_closed {
  padding: 0.25em 1em 0.25em 1em;
}

.tabset_open {
  border: 1px solid silver;
  border-bottom: none;
  background: white;
}

.tabset_closed {
  border-bottom: 1px solid silver;
}