[R] [Rmarkdown] html_document - custom CSS for code snippets

[Duncan Murdoch]

On 21/08/2015 9:38 AM, Omar André Gonzáles Díaz wrote:
> Hi Community,
> 
> I'm using custom CSS to modify my html_document, genereted using knirt.
> 
> According to this page:
> 
> http://rmarkdown.rstudio.com/html_document_format.html
> 
> I have to turn off: 1) theme: null  and 2) highlight: null. And use:
> 3) css: my_styles.css (my css document).
>
> I've achieved to use some html tags, like <main></main> to give some
> left margin to the document. But i cannot apply correctly html tags to
> the code snipets, and convert it's background to gray.
> 
> So my code snipets show the code, but the background is white, and has
> no difference with the white background of the page.
> 
> What can i do?
> 
> *Extra: Now i'm displaying some R code, but i would like to display
> also some javascript code. Is this possible?

Sure, just enter it as

```
x = 1;
for (var i=0; i<2; i++)
```

You won't get syntax highlighting; if you want that, you'll need to
create a "Javascript engine"; see ?knitr::knit_engines, or use a
different one (the "coffee" engine is probably fine):

```{coffee, eval=FALSE}
x = 1;
for (var i=0; i<2; i++)
```

Duncan Murdoch