Source Code: (back to article)
<!DOCTYPE html>
<html>
<head>
<title>Der Titel des Dokuments</title>
<style>
select:required:invalid {
color: #666;
}
option[value=""][disabled] {
display: none;
}
option {
color: #000;
}
</style>
</head>
<body>
<h2>Box mit Platzhalter auswählen</h2>
<select name="drinks" required>
<option value="" disabled selected>Getränk wählen</option>
<option value="coffee">Kaffee</option>
<option value="tea">Tee</option>
<option value="milk">Milch</option>
</select>
</body>
</html>