How to prevent CSS caching on a web page?

Question

I am learning to develop xhtml, css web pages. Often I am doing changes in CSS but it do not reflect on page because of browser cacheing and if I manually clear cahceing it

Answer 1

instead of writing tag using html just use php code. inside tag at the end use php mt_rand() function which will produce a random number and thus your stylesheet will never get cached. "; ?>