Thank you, but… Reading “Adding CSS” I remembered that I use a layout-element for the single product page. So I removed the layout-element, set the content padding for mobile to 20 px for top, bottom, left and right, regenerated the css, cleared cages – without success. There is a css for woocommerce for mobile that needs to load, can you see if it does? Whatever is missing, it is missing only on mobile, not for desktop or tablet. (I also disabled the hook element above the single product page, but it had no influence.)