How to get work old div class code

Hi!

I′m changeing theme to my website. My old website was created by website developer and now i′m doing it myself.

I have lots of Vimeo videos embedded to my old website more than 2000. I wonder is there possible to make the videos work also to my new theme without i having to go throug every embedded video. I have used div class code. I think i have to do something with CSS code so that these codes (div class “col…) start to work again. I couldn′t find the css-code from the old website. Could someone help me with this issue? The problem is that the videos shoud be side by side or on the right or left side. Now they are one on the other

<div class=”col-md-4 col-xs-12 col-sm-12 video”></div>
<div class=”col-md-4 col-md-offset-4 col-xs-12 col-sm-12″></div>
<div class=”col-md-4 col-xs-12 col-sm-12 pull-right video”></div>

Link to the page. You can see how the videos are on my old website

Thanks for help.
Veli-Matti

The page I need help with: [log in to see the link]