title: Rmarkdown font size and header
body: <p>I recently opened a standard Rmd file without editing anything. The default file looks like this:</p>
  
  <p><strong>Untitled.rmd</strong></p>
  
  <pre><code>---
  title: "myfile"
  author: "Me"
  date: "May 25, 2015"
  output: html_document
  fontsize: 12pt
  ---
  
  This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see &lt;http://rmarkdown.rstudio.com&gt;.
  
  When you click the **Knit** button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:
  
  ```{r}
  summary(cars)
  ```
  
  You can also embed plots, for example:
  
  ```{r, echo=FALSE}
  plot(cars)
  ```
  
  Note that the `echo = FALSE` parameter was added to the code chunk to prevent printing of the R code that generated the plot.
  </code></pre>
  
  <p>I wanted to create an html file corresponding to the above file so in a separate R script I did the following:</p>
  
  <pre><code>knit('Untitled.Rmd', 'doc.md')
  markdownToHTML('doc.md', 'testing.html',header = TRUE)
  </code></pre>
  
  <p>For some reason the font size doesn't work and the header information that I was hoping for doesn't appear in my testing.html. Anyone know why this is happening?</p>