.calendar {
  position: relative;
  display: none;
  border-top: 2px solid #fff;
  border-right: 2px solid #000;
  border-bottom: 2px solid #000;
  border-left: 2px solid #fff;
  font-size: 11px;
  color: #000;
  cursor: default;
  background: #c8d0d4;
  font-family: tahoma,verdana,sans-serif;
  z-index: 500;
}