`cols_label_rotate` does not work on Safari

[martinsmapon]

Description

cols_label_rotate does not work on Safari. Screenshot below.

Chrome renders fine.

Development environment

• Operating System: MacOS 15.7.1 (also tested on iPhone)
• Browser: Safari v. 26.0.1
• great_tables Version: v0.18.0

Additional context

Probably related to https://stackoverflow.com/a/79481681.

Wrapping the header labels in a span element and applying the writing mode to that seems to work in both Safari and Chrome.

The change in the output would be from

<th ... style="writing-mode: sideways-lr; vertical-align: middle; text-align: left; padding: 8px 0px;">High Power</th>

to

<th ... style="text-align: left; padding: 8px 0px;"><span style="writing-mode: sideways-lr; vertical-align: middle; height: max-content;">High Power</span></th>

Not sure if solving Safari specific issues makes sense.