Tip (?): rotation with CSS works, but in a non-standard way

Hi!
From my tests, it may be useful to suggest to other users of this fantastic plugin that the “rotate” CSS instruction (90 / -90 applicable to dimensioned elements with absolute position) does not work in the normal form: eg. “transform: rotate (90deg);”. Instead it works in the non-standard form (in fact here in “custom CSS” it is displayed in red): eg. “rotate: 90;” . I think it really depends on the mPDF library (in general excellent!) In Stack Overflow you can read that similar problems also exist in other applications. The mPDF manual (https://mpdf.github.io/css-stylesheets/supported-css.html) is not very clear on this.

Thanks again for this plugin!