1) Into the Gutenberg block Media & Text, the element image margin is not alligned as it should be, as you can see to the right of the H1.
2) I also made an accordion (in blue) in html using <ul><details><summary> with list-style: none; to hide the marker. But the left space dued to the initial marker’s margin is still displayed… is there any way to retrieve a normal (without margin) situation?