Difficulty organizing margin Help please

[lessin007]

Could you help me organize the layout of the page?? This page has the lines totally disorganized. I'll show you an example of how I wanted it to look. Follow these red lines they form as if it were a margin (I made the red lines to signal). However, I would like this change only on the PC, because on the cell phone it is very good:

my site: www.chegadedores.com.br/products/necklymph-dispositivo-ultrassonica-de-pescoco

Exemple:

how to create margin in my site: