/* Pinned About section: the 100vh section stays stuck for a further 240vh (120vh on phones). */
.home-about-track { position: relative; z-index: 1; height: 340vh; }
@media (max-width: 767px) {
  .home-about-track { height: 220vh; }
}
.home-about-stage { position: sticky; top: 0; }
/* css/inline.css gives About a background-attachment:fixed image on phones. Once the pin ends it
   has to scroll away with the section. */
#about.home-about-past { background-attachment: scroll; }