Hi Christian, Thank you for your answer and sorry for my bad english! But I still need help and describe again what I mean exactly:
to 1 .: I changed the picture once. It now has 1772 × 1181 pixels. Nevertheless, I do not see the effect. Is this resolution sufficient or is the implementation of parallax incorrect? Look again please at the sample page https://www.xandy.club/. There, the desired effect is nice to see. First, you see a (background ?) image, then a content-container slides over it and then another anchored image appears. It follows again a text-container etc.
to 2 .: I need only 2 to 3 columns, but would like to set their width individually. For example, the first column should be 7/9 of the page width and the second column 2/9. I can not register that way. The minimum column width seems to be 1/5 of the page width. Is that correct?
Thanks again for your great support!