html, body {
  height: 98%;
}

#container {
  height: 98%;
}

#main, #sidebar {
  float: left;
  width: 50%;
  margin-top: 50px;
  overflow: auto;
  height: 100%;
}  

.navbar {
  overflow: hidden;
  background-color: #def;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1;
}

.navbar input {
  float: left;
  display: block;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.list-group {
  z-index: 999;
}

#searchclear {
  position: absolute;
  right: 5px;
  top: 0;
  bottom: 0;
  height: 30px;
  margin: auto;
  font-size: 14px;
  cursor: pointer;
  color: #123;
}