.notebook {
  /*background-color: #f0f0ff;*/
}

.notebook_tab {
  float: left;
  margin: 0px 0px 0px 5px;
  z-index: 5;
  background-color: #c0c0c0;
  padding: 2px;
  border-style: solid solid none solid;
  border-width: 1px;
  border-color: #c0c0c0;
  cursor: pointer;
}

.notebook_tab_sel {
  z-index: 15;
  background-color: #ffffff;
}

.notebook_panel {
  display: none;
  z-index: 10;
  margin-top: -1px;
  padding: 2px;
  border: 1px solid #c0c0c0;
}