add fontsize to template, see #2

inst/rmarkdown/templates/wpdf_document/skeleton/skeleton.Rmd

@@ -28,6 +28,10 @@ The `papersize` variable control the size of the pages. You can use:
 You can add `landscape` for orientation, for instance: `"a5 landscape"`.
 - a customized size: `"4in 6in"`...
 
+### Font size
+
+The `fontsize` variable control the main size of the font for the document. Its default value is `11pt`.
+
 ## Built-in classes
 
 The `weasydoc::wpdf_document` provides a set of built-in classes. They can be overridden with a customized `CSS` style.
@@ -38,7 +42,11 @@ You can add the class `portrait` or `landscape` to change the orientation.
 
 For instance, the following `data.frame` will be print in landscape mode.
 
-```{r class.output="landscape"}
+    `r ''````{r echo=FALSE, class.output="landscape"}
+    mtcars
+    ```
+
+```{r echo=FALSE, class.output="landscape"}
 mtcars
 ```
 

inst/templates/default/default.html

@@ -29,11 +29,14 @@
   </style>
 $endif$
   <style type="text/css">
-      @page {$if(papersize)$size: $papersize$;$endif$}
+      @page {size: $if(papersize)$$papersize$$else$a4$endif$;}
       @page portrait {size: portrait;}
       .portrait {page: portrait;}
       @page landscape {size: landscape;}
       .landscape {page: landscape;}
+      @media print {
+        html {font-size: $if(fontsize)$$fontsize$$else$11pt$endif$;}
+      }
   </style>
 $for(css)$
   <link rel="stylesheet" href="$css$" />