#sidebar {
  display: none;
  position: absolute;
  border: 1px solid black;
  margin: 0px;
  padding: 0px;
  width: 510px;
  left: 50px;
  top: 50px;
  height: 500px;
  /* bottom: 50px; */
   z-index: 12000;
}

#sidebar_content {
	/* overflow: hidden; Content may be high...*/
	/* overflow: auto; */
	position: absolute;
	font-size: 13px;
	line-height: 14px;
	background-color: #d7d7d7;
	top: 29px;
	bottom: 0;
	left: 0;
	right: 0;
}

.sidebar_title {
  margin: 0px;
  padding: 3px 6px;
  height: 29px;
  font-size: 14px;
  line-height: 15px;
  border-bottom: 1px solid black;
  background: #bbb;
}