Im very curies about The picture shape of the web page ?

That doesn't appear to be curved to me. But it is angled. That is probably done with another CSS property called "transform". There are quite a few ways to use that one, but one possible way to create that effect would be with a "skew" setting.

You might enjoy the CSS Transitions and Transforms course which covers this and even more amazing effects you can create.

Straight from source! I'd forgotten about "clip-path", but that's a bit easier, particularly now that I know about the "Clippy" CSS clip-path maker tool!

That went directly into my bookmarks.

But it might be worth noting that according to "Can I Use?", clip-path isn't nearly as well supported in browsers as transform is.

You mean the photo in a circle? That's done with a CSS property called "border-radius". If you set it to 50% or more on a square element it will become a circle. For example, this CSS rule will make every image on the page either a circle or oval:

img { border-radius: 50%; }

@steven No no the rectangle blue IMG on the top of the site (header place) ? you can see on the bottom of the site there is a curve line,

here is a screenshot https://imgur.com/a/aG7QV https://imgur.com/a/06sXa

thanks