Caption distorts images aspect ratio in revealjs

Bug description

Putting in a caption takes up space from the image and distorts the image.

Steps to reproduce

---
title: "Observable Test"
format: revealjs
---

## Caption distorts iamge

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. 

Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat

![Caption distorts image](_figs/ground-forest.jpg){.absolute top=400 left=50 width=40%}

![Caption distorts image](_figs/aerial-forest.jpg){.absolute top=400 right=50 width=40%}

Expected behavior

This is how it appears without caption:

Actual behavior

Your environment

• VS Code
• Quarto 1.3.450

Quarto check output

[✓] Checking versions of quarto binary dependencies...
Pandoc version 3.1.1: OK
Dart Sass version 1.55.0: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
Version: 1.3.450
Path: /opt/quarto/bin

[✓] Checking basic markdown render....OK

[✓] Checking Python 3 installation....OK
Version: 3.9.13
Path: /home/fes33/Documents/GIK - R&D/Personal - Papers and Reports/10 - Thesis/_Presentation/env/bin/python
Jupyter: 5.5.0
Kernels: python3, julia-1.9

[✓] Checking Jupyter engine render....OK

[✓] Checking R installation...........OK
Version: 4.1.2
Path: /usr/lib/R
LibPaths:
- /home/fes33/R/x86_64-pc-linux-gnu-library/4.1
- /usr/local/lib/R/site-library
- /usr/lib/R/site-library
- /usr/lib/R/library
knitr: 1.43
rmarkdown: 2.22

[✓] Checking Knitr engine render......OK

Start by rendering the provided .qmd example with the revealjs format and compare the captioned and uncaptioned image behavior. Done means absolutely positioned images retain their aspect ratio when a caption is present, matching the expected no-caption appearance.