Test:sandbox

<!DOCTYPE html PUBLIC> <html>

<body>

<iframe frameborder="0" scrolling="no" href="Source of text (easy)" name="iframe" id="iframe">

Error message

</iframe>


<a href="Source of text (easy)" target="iframe">Short explanation</a>

<a href="Source of text (hard)" target="iframe">Detailed explanation</a>

</body>

</html>

Widget

Test:sandbox