Simplify codeblock and their associated tooltip

[GuillaumeGomez]

It is based on #101600 so it needs to wait for this one to be merged first.

This PR does two things:

• Remove CSS class duplication by setting CSS classes such as compile_fail directly on the div wrapping both the codeblock and the tooltip.
• Simplify DOM: no need to wrap the tooltip into a <div>, it can work just as well without it.

You can test it here.

r? @notriddle

[rustbot]

Some changes occurred in HTML/CSS/JS.

cc @GuillaumeGomez, @Folyd, @jsha

[GuillaumeGomez]

I'll give it a try locally to see how it looks like but that seems like a really good idea.

[GuillaumeGomez]

Applied your idea and updated the online demo.

[notriddle]

@GuillaumeGomez Can you rebase this, please?

[GuillaumeGomez]

Done!

[notriddle]

@bors r+ rollup

[bors]

📌 Commit 8ba06d4 has been approved by notriddle

It is now in the queue for this repository.

[bors]

⌛ Testing commit 8ba06d4 with merge 781ef3e...

[bors]

☀️ Test successful - checks-actions
Approved by: notriddle
Pushing 781ef3e to master...

[rust-timer]

Finished benchmarking commit (781ef3e): comparison URL.

Overall result: ❌ regressions - ACTION NEEDED

Next Steps: If you can justify the regressions found in this perf run, please indicate this with @rustbot label: +perf-regression-triaged along with sufficient written justification. If you cannot justify the regressions please open an issue or create a new PR that fixes the regressions, add a comment linking to the newly created issue or PR, and then add the perf-regression-triaged label to this PR.

@rustbot label: +perf-regression
cc @rust-lang/wg-compiler-performance

Instruction count

This is a highly reliable metric that was used to determine the overall result at the top of this comment.

	mean1	range	count2
Regressions ❌ (primary)	1.3%	[1.3%, 1.3%]	1
Regressions ❌ (secondary)	3.4%	[3.1%, 3.9%]	6
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	1.3%	[1.3%, 1.3%]	1

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean1	range	count2
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	2.4%	[1.0%, 3.3%]	4
Improvements ✅ (primary)	-4.7%	[-4.7%, -4.7%]	1
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-4.7%	[-4.7%, -4.7%]	1

Cycles

This benchmark run did not return any relevant results for this metric.

Footnotes

1. the arithmetic mean of the percent change ↩ ↩²

2. number of relevant changes ↩ ↩²

[GuillaumeGomez]

Perf results are noise. No perf change should be detected in here.

[lqd]

@rustbot label: +perf-regression-triaged