text-selection has too much height in spans with relative positions

[Milan Hauth]

minimal example:

```html

<div>
 <span>1</span>
 <span style="position: relative; top: 2em">2</span>
</div>

```

https://milahu.github.io/chromium-discuss-text-search-absolute-position-spans/issue4.html

complex example:

https://milahu.github.io/chromium-discuss-text-search-absolute-position-spans/test2.html

reproduce:

select text in spans with relative positions

actual:

text-selection highlight has too much height

above the selected text

in spans with relative positions.

the text-selection highlight

starts at the relative position y=0

expected:

text-selection highlight should have the same height

as with selected text in spans with absolute positions

this fails in chrome 137.0.7151.119

this works in firefox 139.0.4-1

use case:

EPUB-FXL = fixed-layout EPUB

[Milan Hauth]

> actual:

> text-selection highlight has too much height

text-search highlight has the expected height

(text-search = Ctrl+F)

so the fix is as simple as using the same height

for text-selection highlight and text-search highlight

[Stephen Chenney]

Could you file a bug please? With the example links in your original email.

Assign it to me if you want. I can't promise anything but I'll certainly take a look.

Stephen.

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[Milan Hauth]

> Could you file a bug please?

https://issues.chromium.org/issues/474158711