font a bit small and resizing a bit off

[ghost]

I am finding Jash to be very useful for a project I am working on right now.
The font was a bit small and I found the resizing to be off a bit.
I edited the CSS a fair bit and the JS a wee bit (to stop resizing the textareas manually).
My tweaks are available here :
http://spiral9.com/jash/jash.js
http://spiral9.com/jash/jash.css
and bookmarklet here : http://spiral9.com/jash/