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+<!doctype html>
+<html>
+ <head>
+ <title>CSS Test (Conditional Rules): In @supports, ::file-selector-button can be parsed successfully</title>
+ <link rel="author" title="Tim Nguyen" href="https://github.com/nt1m">
+ <link rel="help" href="https://drafts.csswg.org/css-conditional-3/#at-supports">
+ <link rel="help" href="https://drafts.csswg.org/css-pseudo/#file-selector-button-pseudo">
+ <link rel="match" href="at-supports-001-ref.html">
+ <style>
+ div {
+ background: red;
+ height: 100px;
+ width: 100px;
+ }
+ @supports selector(input::file-selector-button) {
+ div { background-color:green; }
+ }
+ </style>
+ </head>
+ <body>
+ <p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p>
+ <div></div>
+ </body>
+</html>