WPyogi on "Can't find the "file" that contains my classes and div's"

WordPress dynamically generates pages upon load in your browser - so there are no files that correspond to the code you see in the browser. So modifications will need to be made in the template file that is used for the section of the page you want to change.

So you need to ask on the forum for your theme - which is here:

https://wordpress.org/support/theme/point#postform

You should also create a child theme to make any changes to theme files - otherwise you will lose all those changes when the theme is updated -

http://codex.wordpress.org/Child_Themes

These may also be helpful:

http://codex.wordpress.org/Theme_Development

https://wordpress.org/plugins/what-the-file/

And next time you post any code, please use the code buttons - read this first:

http://codex.wordpress.org/Forum_Welcome#Posting_Code