# Positioning Content in the Margin

Create ‘Tufte’ style documents with sidenotes, margin tables and figures, and other margin content

This post demonstrates a few of the capabilities for positioning content in the margin of the page. You can read more about the complete capabilities in the the Article Layout Guide.

Features
Layout
Author

Charles Teague

Published

February 17, 2022

Quarto supports a variety of page layout options that enable you to author content that

• Overflows the content region
• Spans the entire page
• Occupies the document margin

This post will demonstrate a few of the capabilities for positioning content in the margin of the page. You can read more about the complete capabilities in the the Article Layout Guide.

## Margin Figures

Figures that you create using code cells can be placed in the margin by using the column: margin code cell option. If the code produces more than one figure, each of the figures will be placed in the margin.

{r}
#| label: fig-mtcars
#| fig-cap: "MPG vs horsepower, colored by transmission."
#| column: margin

library(ggplot2)
mtcars2 <- mtcars
mtcars2$am <- factor( mtcars$am, labels = c('automatic', 'manual')
)
ggplot(mtcars2, aes(hp, mpg, color = am)) +
geom_point() +  geom_smooth(formula = y ~ x, method = "loess") +
theme(legend.position = 'bottom')


## Margin Tables

You an also place tables in the margin of your document by specifying column: margin.

{r}
#| column: margin

knitr::kable(
mtcars[1:3, 1:3]
)

mpg cyl disp
Mazda RX4 21.0 6 160
Mazda RX4 Wag 21.0 6 160
Datsun 710 22.8 4 108

## Other Content

You can also place content in the margin by targeting the margin column using a div with the .column-margin class. For example:

::: {.column-margin}
We know from *the first fundamental theorem of calculus* that for $x$ in $[a, b]$:

$$\frac{d}{dx}\left( \int_{a}^{x} f(u)\,du\right)=f(x).$$

:::

We know from the first fundamental theorem of calculus that for $$x$$ in $$[a, b]$$:

$\frac{d}{dx}\left( \int_{a}^{x} f(u)\,du\right)=f(x).$

## Margin References

Footnotes and the bibliography typically appear at the end of the document, but you can choose to have them placed in the margin by setting the following option[^1] in the document front matter:

---
reference-location: margin
citation-location: margin
---

With these options set, footnotes and citations will (respectively) be automatically be placed in the margin of the document rather than the bottom of the page. As an example, when I cite Xie, Allaire, and Grolemund (2018), the citation bibliography entry itself will now appear in the margin.

Xie, Yihui, J. J. Allaire, and Garrett Grolemund. 2018. R Markdown: The Definitive Guide. Boca Raton, Florida: Chapman; Hall/CRC. https://bookdown.org/yihui/rmarkdown.

### Asides

Asides allow you to place content aside from the content it is placed in. Asides look like footnotes, but do not include the footnote mark (the superscript number).

This is a span that has the class aside which places it in the margin without a footnote number.
[This is a span that has the class aside which places it in the margin without a footnote number.]{.aside}

## Margin Captions

For figures and tables, you may leave the content in the body of the document while placing the caption in the margin of the document. Using cap-location: margin in a code cell or document front matter to control this. For example:

{r}
#| label: fig-cap-margin
#| fig-cap: "MPG vs horsepower, colored by transmission."
#| cap-location: margin

library(ggplot2)
mtcars2 <- mtcars
mtcars2$am <- factor( mtcars$am, labels = c('automatic', 'manual')
)
ggplot(mtcars2, aes(hp, mpg, color = am)) +
geom_point() +  geom_smooth(formula = y ~ x, method = "loess") +
theme(legend.position = 'bottom')


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