I apply a FontStyle Bold on a text selected with a button but I can't go back to the default value when I click on it again I would like that when I click the first time, the FontStyle Bold is applied...

I'm new in IT and I'm learning CSS now. And sorry for probably a stupid question, which might have been asked already many times - but I've been trying to find the answer for about two or three hours ...

I would like to choose the angle of inclination of an font with the "font-style: oblique "angle"" Like on this example: https://developer.mozilla.org/en-US/docs/Web/CSS/font-style ...

I am currently working on a project where I need to detect bold text on a multi font-size image (so no mathematic morphology possible). This detection will be used in parallel of an OCR system (with t...