page-break-inside: avoid; - doesn't include <br/> tag

**page-break-inside: avoid** doesn't include `
` tag inside `

` element during page height calculation. So page break doesn't work properly when `
` element is used.

e.g. `

`Lorem ipsum dolor sit `
` amet, consectetur adipiscing elit`

`

I would be grateful for fix

Reproduce the reported HTML example with a
inside a

using page-break-inside: avoid. Start by tracing the page height calculation and how the renderer handles the
element within the paragraph. Done means the content respects the requested page break and the existing rendering behavior remains intact.

Written by the indexing model from the issue text.