.c3-tooltip-container {
  z-index: 10;
}
.c3-tooltip {
  border-collapse:collapse;
  border-spacing:0;
  background-color:#fff;
  empty-cells:show;
  -webkit-box-shadow: 7px 7px 12px -9px rgb(119,119,119);
     -moz-box-shadow: 7px 7px 12px -9px rgb(119,119,119);
          box-shadow: 7px 7px 12px -9px rgb(119,119,119);
  opacity: 0.9;
}
.c3-tooltip tr {
  border:1px solid #CCC;
}
.c3-tooltip th {
  background-color: #aaa;
  font-size:14px;
  padding:2px 5px;
  text-align:left;
  color:#FFF;
}
.c3-tooltip td {
  font-size:13px;
  padding: 3px 6px;
  background-color:#fff;
  border-left:1px dotted #999;
}
.c3-tooltip td > span {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 6px;
}
.c3-tooltip .value {
  text-align: right;
}
