css files for designing my webview similar like deskview?

[gcjm]

Is there an example or css file to make my webview about like the deskview?
F.e. the font size of fields including the field captions in webview is to big.
Or this: the buttons for expanding and collapsing the sections in webview should similar deskview.
And where I could post the css reference for minimal effort? (fe. in page options?)
Thank you in advance!
Georg