Deals Page is not responsive

I want to make deals page on my shopping portal. For this i have created a page through visual composer and i have added "Tab Products" element and i have also added some manual coding to make it more beautiful but "Display Style 2" is not fully responsive.

you can see its responsiveness here = http://i.imgur.com/8nu5S9p.png
I want to hide default placeholder image on mouse hover = https://i.imgur.com/wUQF8eW.png
I want to show two products in a row on mobile devices