nav.navbar.navbar-default,
.region.region-sidebar-first,
.main-top,
#block-trending-stories-trending-stories {
  background: white;
  z-index: 13;
  will-change: transform;
}
nav.navbar.navbar-default {
  z-index: 20;
}
.main-top {
  z-index: 12;
}
@media(min-width: 960px) {
  body:not(.front) .main-top.is_stuck + * {
    margin-top: 136px;
  }
}
@media(min-width: 768px) {
  .main-top.is_stuck {
    margin-bottom: 6px !important;
  }

  body.no-fixed-ads #block-trending-stories-trending-stories.is_stuck #trending-stories {
    border-top: 0;
  }

  /* Header */
  nav.navbar.navbar-default.is_stuck .navbar-brand .visible-xs {
    display: block !important;
    margin: 10px 0;
  }
  nav.navbar.navbar-default.is_stuck .navbar-brand .hidden-xs {
    display: none !important;
  }
  nav.navbar.navbar-default.is_stuck .region.region-nav-social,
  nav.navbar.navbar-default.is_stuck .secondary-nav {
    display: none !important;
  }
  nav.navbar.navbar-default.is_stuck .region.region-search .block {
    margin-top: 0;
  }
  nav.navbar.navbar-default.is_stuck .region.region-search .block form {
    margin: 15px 0;
  }

}