User-1416423428 posted
Do you have a specific question?
If you're new to Bootstrap, I'd start with understanding how the BS3 grid system work.
http://getbootstrap.com/css/#grid
There are lots of ways to make your desktop site workable on a mobile device. You can hide certain divs, change their order (via push or pull), etc. In a table, you can hide certain columns to make it fit within the small screen, or make the table sideways
scrollable. Images can be applied the class=img-responsive so it will automatically grow and resize as your monitor resolution changes. (Again, if you need to impose a max-width to make it work better for your design, just do so.) I look at BootStrap
as just a startping point, and not the "law" where you should just accept it as is.
Note: While BS3 is a great starting point, don't be afraid to override the BS3 classnames, paddings, etc. to suit your project. Sometimes, I find the paddings are too generous.