Feature request - Set offset on a per link basis

[danimalweb]

I have a use case where I am using the global selector, e.g. .js-hashy-link and depending on the link I'd like to have different offset values.

I could use scrollToHash, but then I'd have to write a bunch of extra JS code.

How about being able to set the offset via a data attribute?

<a href="#foo" class="js-hashy-link" data-hashy-offset="100">Thing</a>

Pixel values and percentages would be ideal.

Thoughts? Is there a better way?

[mrchimp]

I've started allowing "+100" or "-100" to set a relative amount. Or just "100" to set an absolute amount. Not sure how percentages would work. Percentage of what?

[danimalweb]

Maybe by percentages I mean vh values. The fluid website I'm making right now, everything is percentage based for margins and padding etc. So I'd want to scroll to an element which has a margin-top of 5%.