A.
If the width of the container box is less than the sum of the widths of all floating elements, the floating elements will wrap. At this time, if the heights of the floating elements are different, a blank block will appear.
B.
Floating elements occupy the original space.
C.
The text will surround the floating element when the floating element is with the text.
D.
Floating can only float left and right, not up and down.