Action should be performed only on desired target element

[redcom]

tapAction event is attached to the parent element on which we would like to perform action against. This is exactly how it should be done.
But the delegated event should target individual element we want to alter.

If clicking in "section" parent element, without clicking on the element "paper-shadow" will cause an error.

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[redcom]

Hello,
I have signed the CLA as individual.

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We found a Contributor License Agreement for you (the sender of this pull request) and all commit authors, but as best as we can tell these commits were authored by someone else. If that's the case, please add them to this pull request and have them confirm that they're okay with these commits being contributed to Google. If we're mistaken and you did author these commits, just reply here to confirm.

[redcom]

I did the changes