15 lines
256 B
HTML
15 lines
256 B
HTML
<!DOCTYPE html>
|
|
<!-- form with invalid barred for constraint validation element -->
|
|
<html>
|
|
<head>
|
|
<style>
|
|
form:invalid { display: none ;}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<form>
|
|
<input required readonly>
|
|
</form>
|
|
</body>
|
|
</html>
|
|
|