“Ctrl+/”
“F11/ESC”
<!DOCTYPE html>
<html>
<body>
<form action="demo-form.php">
E-mail: <input type="email" name="usremail">
<input type="submit">
</form>
<p><b>注意:</b> Internet Explorer 9 及更早IE版本不支持type="email" 。</p>
</body>
</html>