LayoutTests/fast/css/pseudo-valid-form-and-fieldset-basics.html - WebKit - Git at Google

 <!doctype html>
 <html>
 <head>
     <style>
         form, fieldset {
             padding: 5px;
             margin: 2px;
             border: 1px solid black;
         }
         :matches(form, fieldset):valid {
             background-color: green;
         }
         :matches(form, fieldset):not(:valid) {
             background-color: red;
         }
         /* Pack them to fit everything in 800*600 */
         body > :not(p) {
             float: left;
         }
     </style>
 </head>
 <body>
     <p>Test the basics of the pseudo class :valid with the &lt;form&gt; and &lt;fieldset&gt; elements.</p>

     <!-- Empty stuff. -->
     <form>
         <fieldset></fieldset>
     </form>

     <!-- Basic input as a descendant. -->
     <form>
         <fieldset>
             <input>
         </fieldset>
     </form>

     <!-- Basic input associated. -->
     <div>
         <form id="basic_input1">
             <fieldset></fieldset>
         </form>
         <fieldset form="basic_input1">
             <input>
         </fieldset>
     </div>

     <div>
         <form id="basic_input2">
             <fieldset></fieldset>
         </form>
         <fieldset>
             <input form="basic_input2">
         </fieldset>
     </div>

     <!-- Required input as a descendant. -->
     <form>
         <fieldset>
             <input required>
         </fieldset>
     </form>

     <!-- Required input associated. -->
     <div>
         <form id="required_input1">
             <fieldset></fieldset>
         </form>
         <fieldset>
             <input form="required_input1" required>
         </fieldset>
     </div>

     <div>
         <form id="required_input2">
             <fieldset></fieldset>
         </form>
         <fieldset form="required_input2">
             <input required>
         </fieldset>
     </div>

     <!-- Valid required input as a descendant. -->
     <form>
         <fieldset>
             <input value="WebKit!" required>
         </fieldset>
     </form>

     <!-- Valid required input associated. -->
     <div>
         <form id="valid_required_input1">
             <fieldset></fieldset>
         </form>
         <fieldset>
             <input value="WebKit!" form="valid_required_input1" required>
         </fieldset>
     </div>
     <div>
         <form id="valid_required_input2">
             <fieldset></fieldset>
         </form>
         <fieldset form="valid_required_input2">
             <input value="WebKit!" required>
         </fieldset>
     </div>
 </body>
 </html>
	<!doctype html>
	<html>
	<head>
	<style>
	form, fieldset {
	padding: 5px;
	margin: 2px;
	border: 1px solid black;
	}
	:matches(form, fieldset):valid {
	background-color: green;
	}
	:matches(form, fieldset):not(:valid) {
	background-color: red;
	}
	/* Pack them to fit everything in 800600 /
	body > :not(p) {
	float: left;
	}
	</style>
	</head>
	<body>
	<p>Test the basics of the pseudo class :valid with the <form> and <fieldset> elements.</p>

	<!-- Empty stuff. -->
	<form>
	<fieldset></fieldset>
	</form>

	<!-- Basic input as a descendant. -->
	<form>
	<fieldset>
	<input>
	</fieldset>
	</form>

	<!-- Basic input associated. -->
	<div>
	<form id="basic_input1">
	<fieldset></fieldset>
	</form>
	<fieldset form="basic_input1">
	<input>
	</fieldset>
	</div>

	<div>
	<form id="basic_input2">
	<fieldset></fieldset>
	</form>
	<fieldset>
	<input form="basic_input2">
	</fieldset>
	</div>

	<!-- Required input as a descendant. -->
	<form>
	<fieldset>
	<input required>
	</fieldset>
	</form>

	<!-- Required input associated. -->
	<div>
	<form id="required_input1">
	<fieldset></fieldset>
	</form>
	<fieldset>
	<input form="required_input1" required>
	</fieldset>
	</div>

	<div>
	<form id="required_input2">
	<fieldset></fieldset>
	</form>
	<fieldset form="required_input2">
	<input required>
	</fieldset>
	</div>

	<!-- Valid required input as a descendant. -->
	<form>
	<fieldset>
	<input value="WebKit!" required>
	</fieldset>
	</form>

	<!-- Valid required input associated. -->
	<div>
	<form id="valid_required_input1">
	<fieldset></fieldset>
	</form>
	<fieldset>
	<input value="WebKit!" form="valid_required_input1" required>
	</fieldset>
	</div>
	<div>
	<form id="valid_required_input2">
	<fieldset></fieldset>
	</form>
	<fieldset form="valid_required_input2">
	<input value="WebKit!" required>
	</fieldset>
	</div>
	</body>
	</html>