Media Queries - does it matter if in css file or html?

I want to use media queries to alter my design for phones and other mobile devices.

It seems I can开发者_StackOverflow社区 either have the following within my css file:

@media handheld and (max-width: 480px),  
screen and (max-device-width: 480px) {
}

Or, I can have something similar as part of the link to the CSS file, in my page html. Is their a difference between these two methods or is the result the same? Thanks

They are the same. Check the "Meet the media query" section of this link for even more choices on how to introduce them: http://www.alistapart.com/articles/responsive-web-design/