.room-qr {
  margin: 12px 0 22px;
  padding: 12px;
  border: 1px solid #176276;
  border-radius: 10px;
  text-align: left;
}
.room-qr summary { cursor: pointer; font-weight: 700; }
.room-qr img {
  display: block;
  width: 220px;
  max-width: 100%;
  height: auto;
  margin: 14px auto;
  background: white;
}
.room-qr img[hidden] { display: none; }
.room-qr p { font-size: 13px; margin: 12px 0; }
.room-qr a { display: block; overflow-wrap: anywhere; font-size: 12px; }