/* DaNet 5.401 TEST: opaque white fill between black header and fixed tabs.
   5.400 geometry, layout, sticky coupling and black header appearance stay intact. */
html:not(.danetBusinessPushStartup5379) body:not(.serviceMode) .app > .top::after {
  content: "";
  position: absolute;
  top: 100%;
  bottom: auto;
  left: 0;
  width: 100%;
  height: var(--danetNavOpaqueGap5401, 0px);
  background: #fff;
  opacity: 1;
  pointer-events: none;
  border: 0;
  box-shadow: none;
  z-index: 0;
}