[R] better two column output from rmarkdown

[Bos, Roger]

Disclaimer: This question is more about HTML than R, but since I am using rmarkdown, I am not sure of a better forum to ask this.  The code example below produces two column HTML output.  If you run the example you will see that the "bbbb" paragram starts off at the bottom of the first column and wraps around to the top of the second column.  I am wondering if there is a HTML tag or anything so I can keep the "bbbb" section together and not have it wrap to the next column.  Also, if you know of a better way to create two column output, I would be happy hear that as well.  I have placed the CSS inside the .Rmd file to make it easier to run.

library(rmarkdown)
render('example.Rmd')


example.Rmd file:
---
output:
  html_document:
    theme: readable
    highlight: null
    css: null
    fig_width: 1
    fig_height: 1
    fig_caption: true

---
<style type="text/css">
#TEST {
       -moz-column-count: 2;
       -moz-column-gap: 20px;
       -webkit-column-count: 2;
       -webkit-column-gap: 20px;
}
</style>

```{r test, eval=TRUE, echo=FALSE, error=FALSE, message=FALSE, warning=FALSE}

aa <- paste(rep('aaaaa', 49), collapse=" ")
bb <- paste(rep('bbbb', 49), collapse=" ")
cc <- paste(rep('ccc', 49), collapse=" ")
dd <- paste(rep('dd', 49), collapse=" ")
ee <- paste(rep('e', 49), collapse=" ")
```

### TEST ### {#TEST}
`r aa`

`r bb`

`r cc`

`r dd`

`r ee`



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