/* Hide all containers by default */
.container-group-a,
.container-group-b,
.container-default {
  display: none !important;
}

/* Show only the matching group */
.location-group-a .container-group-a { display: block !important; }
.location-group-b .container-group-b { display: block !important; }
.location-default .container-default { display: block !important; }