0311-isvalid.html
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8>
<title>Test 0311</title>
</head>
<body>
<div>
<span class="attribution-line">this photo was taken by
<span property="">Stéphane Corlosquet</span>
</span>
</div>
</body>
</html>