A1.1
block
postion:absolute block
haslayout block and set margin-top is
30px
A1.2
block
postion:absolute block
haslayout block and set margin-top is
-10px
A2
block
postion:relative block
haslayout block and set
margin-top
A3
block
block
haslayout block and set
margin-top
A4
block
postion:absolute block
haslayout inline-block and set margin-top
A5
block
postion:absolute block
block and set margin-top