Hi,

Is there any way to store CSS settings and classes into a database. I have a css file describing styles for whole website.
I want to give user an option, to modify styles (background color, font, table header font, etc.) of thier own choices (at run-time). When user selects from the given options and hit save, then these values store in the database, so that when user visits the website next time then customized styles (theme) should be displayed on the web pages rather than default styles.
I know this can be done by using cookies (through javascript) but the problem arises when user visits the website after deleting private data of browser. In this way, again default styles applies to all web pages.
Also, i am using Java language(Wicket framework).

Is there any way to make css file dynamic (using variables in css file), or to save css classes (styles) into database ?

Thanks,
Farhan.

Yep, Save the user options as text in a database and write a user stylesheet into the page.
This allows the global style sheet to remain unchanged, but onpage user defined rules will override the global rules.

Also, you can send a "Content-Type: text/css" header for a file with any extension, if you want to load the page externally, from a <link> tag etc. Then, you could treat the file just as if it were any other dynamic page, only you would only be serving CSS. Don't know anything about Wicket, but I can't imagine it will be that hard to do.

Wicket

The above mentioned suggestion didnt work for me, so just forget database, the other option is to make CSS dynamic. Is there any way to make CSS file dynamic using java ?
For example: CSS styles are implemented in a separate file(styles.css) like: body{background:{$color};} and then modify that color variable in javacode to make styles dynamic.

Dynamic is a very loose word, and you're not really asking anything different than you were before. If you have implemented the above suggestions, I suggest you adapt them to what you need. I know they work because I have used both techniques.