.caret {
  display: none !important; 
  width: 0;
  height: 0;
  margin-left: 2px;
  vertical-align: middle;
  border-top: 4px solid;
  border-right: 4px solid transparent;
  border-left: 4px solid transparent;
}
body[data-color="grey"] #sidebar > ul.dropdown-menu ul {
  background-color: #222222;
}
#sidebar > ul.dropdown-menu > li.open ul {
  display: block !important;
}

body #wrapper{
  height:100% !important;
}
body #wrapper #content{
  min-height: 87%;
}