rustdoc "source" links are not clickable

[RalfJung]

To reproduce, navigate to https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/struct.Ty.html and click the the "source" link for any of the methods. Nothing at all happens when I do that. I tried Firefox and Chromium.

This seems to be a fairly recent regression.

@rust-lang/rustdoc

[GuillaumeGomez]

It's because it's under the h4 for some reason. Let's see what changed in the last few days.

[GuillaumeGomez]

I think it's because of 303653e. I'll try to send a fix today.

[GuillaumeGomez]

It's because .code-header added a position: relative to have a correct positioning of the tooltip on mobile devices.