style links based on filetype

style_links

/* external links */  
a[href^="http://"] {  
    padding-right: 13px;  
    background: url('external.gif') no-repeat center rightright;  
}  
   
/* emails */  
a[href^="mailto:"] {  
    padding-right: 20px;  
    background: url('email.png') no-repeat center rightright;  
}  
   
/* pdfs */  
a[href$=".pdf"] {  
    padding-right: 18px;  
    background: url('acrobat.png') no-repeat center rightright;  
}