There are some legal restrictions such like "no alcohol and cigarette promotion are allowed", "websites containing contents only for adults should put a sign onto themselves"....nothing really serious and nobody is taking these restrictions seriously.
Hay algunas restricciones legales como "no se permite la promoción de alcohol ni cigarrillos", "sitios web con contenido solamente para adultos deben poner un cartel en ellos"... nada realmente serio y nadie toma esas restricciones seriamente.