Fix compiler page offset when having too much tabs

[netalondon]

Fixes #451

the line position: absolute !important; caused the issue.
disply: none; achieves the same effect.

[DavidSouther]

Unfortunately, this breaks keyboard interactions. The current form allows keyboard focus on the tabs to use the arrow keys to move tabs.

[netalondon]

We can do opacity: 0; instead, but this leaves a small gap after the label.

before:

after:

Is this good enough?

[DavidSouther]

How does it look by removing the position: absolute and setting opacity: 0; margin-inline: -1px;?

[netalondon]

How does it look by removing the position: absolute and setting opacity: 0; margin-inline: -1px;?

There's still a gap but smaller:

margin-inline: -7px; looks most similar to the initial version.
Should I just do that?

[DavidSouther]

It makes me a tiny bit uncomfortable, but just add a comment explaining why it's that way.