| OLD | NEW |
|---|
| (Empty) | |
| 1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/x
html1/DTD/xhtml1-strict.dtd"> |
| 2 <html xmlns="http://www.w3.org/1999/xhtml"> |
| 3 <head> |
| 4 <title>CSS Test: Absolutely positioned, non-replaced elements, 'height'
based on 'top' and 'bottom' positions</title> |
| 5 <link rel="author" title="Microsoft" href="http://www.microsoft.com/" /> |
| 6 <link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/
BrowserBugsSection/css21testsuite/" /> <!-- 2012-08-31 --> |
| 7 <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#abs-non-r
eplaced-height" /> |
| 8 <link rel="match" href="absolute-non-replaced-height-003-ref.xht
" /> |
| 9 |
| 10 <meta name="flags" content="" /> |
| 11 <meta name="assert" content="The 'auto' values on 'margin-top', 'margin-
bottom' are set to '0' and the 'height' is the remaining space between the 'top'
and 'bottom' positions, when 'height' is 'auto' and 'top' and 'bottom' are both
not 'auto'." /> |
| 12 <style type="text/css"> |
| 13 #div1 |
| 14 { |
| 15 border: solid black; |
| 16 height: 3in; |
| 17 position: relative; |
| 18 width: 3in; |
| 19 } |
| 20 div div |
| 21 { |
| 22 background: blue; |
| 23 bottom: 1in; |
| 24 height: auto; |
| 25 margin-bottom: auto; |
| 26 margin-top: auto; |
| 27 position: absolute; |
| 28 top: 1in; |
| 29 width: 100%; |
| 30 } |
| 31 |
| 32 /* |
| 33 |
| 34 1in : top |
| 35 + |
| 36 auto (to solve): margin-top |
| 37 + |
| 38 0 : border-top-width |
| 39 + |
| 40 0 : padding-top |
| 41 + |
| 42 auto (to solve) : height |
| 43 + |
| 44 0 : padding-bottom |
| 45 + |
| 46 0 : border-bottom-width |
| 47 + |
| 48 auto (to solve): margin-bottom |
| 49 + |
| 50 1in : bottom |
| 51 ============= |
| 52 3in : height of containing block |
| 53 |
| 54 |
| 55 " |
| 56 'height' is 'auto', 'top' and 'bottom' are not 'auto', |
| 57 then 'auto' values for 'margin-top' and 'margin-bottom' are set to 0 |
| 58 and solve for 'height' |
| 59 " |
| 60 |
| 61 so this brings: |
| 62 |
| 63 1in : top |
| 64 + |
| 65 0 (set): margin-top |
| 66 + |
| 67 0 : border-top-width |
| 68 + |
| 69 0 : padding-top |
| 70 + |
| 71 auto (to solve) : height |
| 72 + |
| 73 0 : padding-bottom |
| 74 + |
| 75 0 : border-bottom-width |
| 76 + |
| 77 0 (set): margin-bottom |
| 78 + |
| 79 1in : bottom |
| 80 ============= |
| 81 3in : height of containing block |
| 82 |
| 83 So, height must use 1in in order to balance the equation |
| 84 |
| 85 */ |
| 86 </style> |
| 87 </head> |
| 88 <body> |
| 89 <p>Test passes if a blue rectangle is <strong>vertically centered</stron
g> in an hollow black square.</p> |
| 90 <div id="div1"> |
| 91 <div></div> |
| 92 </div> |
| 93 </body> |
| 94 </html> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2824603002:
Import css21/positioning W3C CSS Test Suite (Closed)
