Creating a omelette recipe web page with HTML and CSS

Firstly it was my first project ever, so I was a bit nervous and overwhelmed by this challenge. I founded some of the CSS elements hard to set because of my lack of knowledge and practice, I got a bit confused and became crazy at some point.

Right now I'm unsure about mostly CSS features, such as position, display and make correct padding or margin, although I'm getting daily more confident with HTLM.

I'd love to ask which would be the best practices in CSS and HTLM that need to be continuously follow.

Thank you so much in advance!