The drag and drop of blocks on landing pages when we edit them can be very confusing. With some pages, I couldn't even see any difference.
Here are things to improve:

• When we drag a block over different zones of the landing page, before droping (releasing the mouse), the page content itself should move (not only the zone and block borders) to show a grey block (size and design to be detailed, but it should say "drop here").
• When we drop the block and he is added to the page draft, he should not be invisible (even if no content has been defined for it). It should be an empty block visual (size and design to be detailed). We can not just use the borders of the block.