<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>CSS Test: Valid Identifiers (starting with escaped -) as Classes and IDs</title> <link rel="author" title="L. David Baron" href="http://dbaron.org/"> <link rel="help" href="http://www.w3.org/TR/CSS21/syndata.html#characters"> <style type="text/css"> .one { color: red; background: white; } .\-ident, .one { color: green; } .two { color: red; background: white; } #\-ident, .two { color: green; } </style> </head> <body> <p class="one">This should be green.</p> <p class="two">This should be green.</p> </body> </html>