Placing anchor element inside an anchor element

Question

I was wondering if HTML code is valid:

<a href="www.example.com" target="_blank">
   <a href="www.other.com" target=_blank">OTHER</a>
   <div>Example</div>
</a>

What other can it be done if it's not valid?

Answer 1

No, this code is not valid. Links fall into the category of "interactive content," and cannot (per the specification) contain any elements that are also within the category of "interactive content".

Source: http://www.w3.org/TR/html5/text-level-semantics.html#the-a-element