<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>CSS Test: [attr~=""]Attribute Selectors with Empty String Values</title> <style type="text/css"> @page { font: italic 8pt sans-serif; color: gray; margin: 7%; counter-increment: page; @top-left { content: "CSS 2.1 Conformance Test Suite"; } @top-right { content: "Test attribute-token-selector-002"; } @bottom-right { content: counter(page); } } </style> <link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/"/> <link rel="help" href="http://www.w3.org/TR/CSS21/syndata.html#tokenization"/> <meta name="assert" content="[attr~=''] is valid but matches nothing."/> <style type="text/css"> p { color: green; } p.valid { color: red; } [title~=""], [title~=''], p.valid { color: green; } [title~=], p.valid { color: red; } [title~=""] { color: red; } </style> </head> <body> <p class="valid">This sentence must be green.</p> <p title="">This sentence must be green.</p> <p title=" ">This sentence must be green.</p> <p title=" ">This sentence must be green.</p> <p title="q">This sentence must be green.</p> </body> </html>