cache and when two columns are one over the other don't make them as tall as the page
cache and when two columns are one over the other don't make them as tall as the page

GustavoVS/timtec,virgilio/timtec,AllanNozomu/tecsaladeaula,mupi/escolamupi,mupi/tecsaladeaula,hacklabr/timtec,mupi/escolamupi,mupi/timtec,GustavoVS/timtec,mupi/tecsaladeaula,mupi/timtec,virgilio/timtec,virgilio/timtec,virgilio/timtec,AllanNozomu/tecsaladeaula,mupi/timtec,hacklabr/timtec,mupi/tecsaladeaula,mupi/tecsaladeaula,GustavoVS/timtec,GustavoVS/timtec,hacklabr/timtec,AllanNozomu/tecsaladeaula,hacklabr/timtec,AllanNozomu/tecsaladeaula,mupi/timtec