Page.php strange behaviour

Hi all!

I need your help because i can’t find where is the problem!!.

I have created a new page template for a secondary page. In this secondary page i want (now) to show a grid of teasers with all my publications. Then i copy and paste EXACTLY the same code than index.php. But in this secondary page all the teasers are presented in just ONE COLUMN. I can’t understand all is exactly the same. And when i try to use the browser tools they show a strange margin in all the teasers for this secondary page.

Please, anyone could say me why in secondary pages objects are presentend diferently than in index.php??

this is the web: https://proyectofireflies.com

the index.php is the main page.
the secondary page with the problem is “LUCIERNAGAS” (the first one in the menu)

Thanks!