/* JR Mobile Memories Help Box Height (Min)
   Targets the Memories "How To" floating box (<aside class="jr-mhfb-box jr-mhfb--memories-help">)
   when the How-To panel is open (body.jr-mt-open-howto).
   Mobile-only. Enforced with high specificity + !important.
*/
@media (max-width: 768px) {
  body.jr-mt-open-howto aside.jr-mhfb-box.jr-mhfb--memories-help {
    max-height: none !important;
    height: 258px !important;  /* NEW desired height */
    overflow: auto !important;
    min-height: 0 !important;
  }
}