embedded-doc-abs-pos-non-replaced-icb-vrl-008.html (2100B)
1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> 2 3 <html> 4 5 <head> 6 7 <meta http-equiv="content-type" content="text/html; charset=UTF-8"> 8 9 <title>Embedded HTML document for abs-pos-non-replaced-icb-vrl-008 in 'writing-mode: vertical-rl'</title> 10 11 <!-- 12 position absolute and 'vertical-rl' - 'left' and 'width' are 'auto', 'right' is not 'auto' with 'direction: rtl' in initial containing block 13 --> 14 15 <style type="text/css"> 16 html 17 { 18 direction: rtl; 19 } 20 21 div 22 { 23 border-left: green solid 25px; 24 border-right: green solid 75px; 25 height: 100px; 26 left: auto; 27 position: absolute; 28 right: 20%; 29 top: 0px; 30 width: auto; 31 writing-mode: vertical-rl; 32 } 33 34 /* 35 " 36 1. [If] 'left' and 'width' are 'auto' and 'right' is not 'auto', then the width is shrink-to-fit. Then solve for 'left' 37 " 38 10.3.7 Absolutely positioned, non-replaced elements 39 http://www.w3.org/TR/CSS21/visudet.html#abs-non-replaced-width 40 41 So: 42 43 auto : left 44 + 45 0px : margin-left 46 + 47 25px : border-left-width 48 + 49 0px : padding-left 50 + 51 auto : width 52 + 53 0px : padding-right 54 + 55 75px : border-right-width 56 + 57 0px : margin-right 58 + 59 20% : right 60 ==================== 61 500px : width of containing block (width of Initial Containing Block) 62 63 becomes 64 65 (solve) : left 66 + 67 0px : margin-left 68 + 69 25px : border-left-width 70 + 71 0px : padding-left 72 + 73 0px : width (shrink-to-fit) 74 + 75 0px : padding-right 76 + 77 75px : border-right-width 78 + 79 0px : margin-right 80 + 81 100px : right (20% of 500px == 100px) 82 ==================== 83 500px : width of containing block (width of Initial Containing Block) 84 85 so used left offset value must be 300px . 86 87 */ 88 </style> 89 </head> 90 91 <body> 92 93 <div></div> 94 95 </body> 96 </html>