### Bug description

When I widen the browser, the page follows the left side instead of being centered as shown in the attached screenshot. I do not understand under what conditions this occurs, as it does not happen in my other projects.

![image](https://user-images.githubusercontent.com/50911393/173335231-7ea1526b-a5e6-4cd3-9c6e-668ede24c94b.png)

Source: https://github.com/rocker-org/website/blob/9e36976f182639fefb1921cb472b5410e17c2fbc/images/index.md

```sh
$ quarto check

[✓] Checking Quarto installation......OK
      Version: 0.9.577
      Path: /opt/quarto/bin

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

[✓] Checking Python 3 installation....OK
      Version: 3.8.10
      Path: /usr/bin/python3
      Jupyter: 4.10.0
      Kernels: python3

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

[✓] Checking R installation...........OK
      Version: 4.2.0
      Path: /usr/local/lib/R
      LibPaths:
        - /usr/local/lib/R/site-library
        - /usr/local/lib/R/library
      rmarkdown: 2.14

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

### Checklist

- [X] [formatted your issue](https://yihui.org/issue/#please-format-your-issue-correctly) so it is easier for us to read?
- [X] included a minimal, self-contained, and reproducible example?
- [X] documented the quarto version you're running, by providing the output produced by `quarto check` in a terminal in your issue?
- [ ] documented the RStudio IDE version you're running (if applicable), by providing the value displayed in the "About RStudio" main menu dialog?
- [ ] documented which operating system you're running? If on Linux, please provide the specific distribution as well.
- [ ] upgraded to the latest version, including your versions of R, the RStudio IDE, and relevant R packages?
2022-06-13T10:38:19Z
eitsupi
bug
Future
open
Expand the web site, then move to the left side
https://github.com/quarto-dev/quarto-cli/issues/1137