ブロック一つの
position:relative;
の場合
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div.rela1
position:relative
left:--;
top:--;
div.rela2
position:relative
top:0;
left:0;
position in 親子関係
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Parent(div.rela1)
--- Child(div.abso--)
background:rgba(0,0,0,0.4);
Parent/span>
--- Child
position:absolute;
top:--;
left:--;
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parent
-child
position:absolute;
top:0;
left:--;
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parent
-child
position:absolute;
top:0;
left:0;
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position in 親子関係 --- absoluteの位置 - %指定-
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parent(div-.rela1)position:relative
-child(div.abso11)
position:absolute;
top:100%;
left:100%;
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parent(div-.rela1)
-child(div.abso11)
position:absolute;
top:100%;
right:100%;
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parent(div-.rela1)
-child(div.abso11)
position:absolute;
bottom:100%;
left:100%;
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parent(div-.rela1)
-child(div.abso11)
position:absolute;
bottom:100%;
right:100%;
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