The url() function

This function evaluates the URL of a location relative to the CSS file location and appends each of the relative path components to the final location.

url(location,  
 loc_1,  
 loc_2,  
 ...); 
 location;
 loc_1;
 loc_2;
location

The location as string. If not absolute, will be solved relative to the CSS file URL.

loc_1 ... loc_n

Relative location path components as string. (optional)