Use the :not selector:
div:not(#bar){
color:red;
}
<div>foo</div>
<div id="bar">bar</div>
Update : name
instead of ID
:
div:not([name="bar"]){
color:red;
}
<div>foo</div>
<div name="bar">bar</div>
Update: CSS2 selector, similar answer to Tom Heard-s:
div{
color:red;
}
div[name="bar"]{
color:blue;
}
<div>foo</div>
<div name="bar">bar</div>
Also, see selectivizr