(FEATURE REQUEST) Use class instead of inline style

[Sébastien LeBlanc]

Inline style make it harder to override the component style.
Currently I do not even load this plugin CSS because I only care about the formatting.
But the fact that you use inline-style make it harder to style the component with my own custom style.

[Sébastien LeBlanc]

I don't want a random blue carret and outline on focus.
My app already has it's own style.