<! – [if lte IE 7]> <html class = “ie7”> <! [endif] ->
<! – [if IE 8]> <html class = “ie8”> <! [endif] ->
<! – [if IE 9]> <html class = “ie9”> <! [endif] ->
<! – [if! IE]> <! -> <html> <! – <! [endif] ->
<— Corpo —->
<div class="box">Box</div>
<— CSS —->