Highlight Links that open in a New Window

a[target="_blank"]:before, 
a[target="new"]:before 
{ 
margin:0 5px 0 0; 
padding:1px; 
outline:1px solid #333; 
color:#333; 
background:#ff9;
font:12px "Zapf Dingbats"; 
content: "279C"; 
}