Hi @AurelieTack, thanks for your reply, when I view the homepage on iphone xr, this is the result I see in the rendering:
From here it looks like the breakpoint is working ok, but the styles applied to the elements on the mobile landscape that are applied/inherited from the tablet portrait view does not look the same because the content is taller than the viewport on the iphone xr (the viewport size for mobile landscape can vary in size between devices).
The content parent section is now set to be 100vw and 100vh tall, but the content itself on mobile landscape is not styled to shrink at the moment, the content expands and is not 100% visible in the initial viewport view at page load.
I would reduce font size and remove any top margins on elements (as much as possible to get rid of extra whitespace) and try to resize your items a little smaller to fit in the viewport, then check again at mobile portrait view and adjust if necessary.
When I set the Section height to auto and just add a little padding, it should look better on mobile landscape when rendered:
I hope this helps