hello i am new so need much help i like web programing
i am facing lots of dificulties in coding css i code and some actions dont work and also dynamic layout in html
You'll have to ask a specific question, preferably with an example of your code.
Try a website like codecademy.com or dash.generalassemb.ly, they have good beginner web design tutorials. You should have a firm grip on CSS before you start worrying about dynamic websites.
Also learn SASS and LESS in addition to CSS. It will help.