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1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
2 <style> | 2 <style> |
3 body { | 3 body { |
4 margin: 0; | 4 margin: 0; |
5 } | 5 } |
6 div { | 6 div { |
7 width: 100px; | 7 width: 100px; |
8 height: 100px; | 8 height: 100px; |
9 top: 20px; | 9 top: 20px; |
10 background-color: blue; | 10 background-color: blue; |
11 } | 11 } |
12 #target0 { | 12 #target0 { |
13 left: 20px; | 13 left: 20px; |
14 position: relative; | 14 position: relative; |
15 } | 15 } |
16 #target1 { | 16 #target1 { |
17 left: 20px; | 17 left: 20px; |
18 position: absolute; | 18 position: relative; |
19 } | 19 } |
20 #target2 { | 20 #target2 { |
21 left: 220px; | 21 left: 220px; |
22 position: absolute; | 22 position: fixed; |
23 z-index: 0; | 23 z-index: 0; |
24 } | 24 } |
25 #target3 { | 25 #target3 { |
26 left: 420px; | 26 left: 420px; |
27 position: fixed; | 27 position: absolute; |
28 z-index: 0; | 28 z-index: 0; |
29 } | 29 } |
30 </style> | 30 </style> |
31 There should be no invalildations on change of position without actual change of
position and size. | 31 There should be no invalildations on change of position without actual change of
position and size. |
32 <!-- target0 ensures we don't strip anonymous wrappers (and trigger a layout) wh
en the other elements change position. --> | 32 <!-- target0 ensures we don't strip anonymous wrappers (and trigger a layout) wh
en the other elements change position. --> |
33 <div id="target0"></div> | 33 <div id="target0"></div> |
34 <div id="target1"></div> | 34 <div id="target1"></div> |
35 <div id="target2"></div> | 35 <div id="target2"></div> |
36 <div id="target3"></div> | 36 <div id="target3"></div> |
37 <script> | |
38 target1.style.top = target0.offsetTop + target0.offsetHeight + 'px'; | |
39 </script> | |
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