/*
  hiding all sub items of non-active parents.
*/

/* Left Navigation */
.cb-left-navigation > ul.menu > li:not(.active-trail) > ul {
  display: none;
}
.cb-left-navigation ul ul li.cb-nested + li a{
  border-top: none;
}

.cb-left-navigation  ul.menu  li.cb-nested:not(.active-trail) > ul {
  display: none;
}