before talking about CSS priority, we have to know what is CSS, CSS is used to do something. CSS is simply, Cascading Style Sheets (CSS (Cascading Style Sheets). Its specification represents a unique in the history of the Internet development stage. Now for that engages in the production of web friends, should not have heard of CSS, rarely because we often need to use in the process of making web pages. We can through the CSS for the document set rich and easy to modify the appearance, to alleviate the work burden, web designers and thus reduce the cost of production and maintenance.

This concludes the body part