[Truffle]

For what you are wanting to do a dynamic server side language is required

Everyone has their own opinions but I think PHP is the easiest to learn. Some may prefer Perl, Python or Ruby.

But if your only knowledge, at the moment, is HTML/CSS don't expect to be able to jump right in and work in a PHP framework

You'll need to learn the language first by writing just straight forward PHP

Frameworks require object oriented programming knowledge (which isn't just restricted to web programming or PHP)