.NET - How to build themes for big CSS files

Question

I am in charge of providing a theme functionality for a site using a big CSS file (thousands of elements) I've just inherited. Basically we want to allow the user to be able to change the colors on the screen. Every CSS element, besides color definition also have lots of other attributes - size, font, float, etc... As well a specific color appears in various CSS elements. If I use the Theme functionality of ASP.NET to have a different CSS file per theme, I have to duplicate my CSS file across all the themes, and it becomes a maintenance nightmare. Optimally I would like to have a single CSS file (for maintenance) and be able to change the color attributes only. What are the options here? JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

You only have to duplicate the color attributes so if you have a:hover { text-decoration:none; color:Black; display:block } in your css file in your theme you only need: a:hover { color:Red; } Now in your page you want to make sure you still reference the original css file, and the browser will merge all the styles.