.site-shell.is-websites-hub-shell > .site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  background: rgba(255, 255, 255, 0.96);
}

.site-shell.is-websites-hub-shell > main {
  position: relative;
  z-index: 0;
}