| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> |
| <html> |
| <head> |
| <title>The Second Acid Test</title> |
| <style type="text/css"> |
| /* section numbers refer to CSS2.1 */ |
| |
| /* page setup */ |
| html { font: 12px sans-serif; margin: 0; padding: 0; overflow: hidden; /* hides scrollbars on viewport, see 11.1.1:3 */ background: white; color: red; } |
| body { margin: 0; padding: 0; } |
| |
| /* introduction message */ |
| .intro { font: 2em sans-serif; margin: 3.5em 2em; padding: 0.5em; border: solid thin; background: white; color: black; position: relative; z-index: -2; /* should cover the black and red bars that are fixed-positioned */ } |
| .intro * { font: inherit; margin: 0; padding: 0; } |
| .intro h1 { font-size: 1em; font-weight: bolder; margin: 0; padding: 0; } |
| .intro :link { color: blue; } |
| .intro :visited { color: purple; } |
| |
| /* picture setup */ |
| #top { margin: 0 3em 0; padding: 2em 0 0 .5em; text-align: left; font: 2em/24px sans-serif; color: navy; white-space: pre; } /* "Hello World!" text */ |
| .picture { position: relative; border: 1em solid transparent; margin: 0 0 0 3em; } /* containing block for face */ |
| .picture { background: red; } /* overriden by preferred stylesheet below */ |
| |
| /* top line of face (scalp): fixed positioning and min/max height/width */ |
| .picture p { position: fixed; margin: 0; padding: 0; border: 0; top: 9em; left: 11em; width: 140%; max-width: 4em; height: 8px; min-height: 1em; max-height: 2mm; /* min-height overrides max-height, see 10.7 */ background: black; border-bottom: 0.5em yellow solid; } |
| |
| /* bits that shouldn't be part of the top line (and shouldn't be visible at all): HTML parsing, "+" combinator, stacking order */ |
| .picture p.bad { border-bottom: red solid; /* shouldn't matter, because the "p + table + p" rule below should match it too, thus hiding it */ } |
| .picture p + p { background: maroon; z-index: 1; } /* shouldn't match anything */ |
| .picture p + table + p { margin-top: 3em; /* should end up under the absolutely positioned table below, and thus not be visible */ } |
| |
| /* second line of face: attribute selectors, float positioning */ |
| [class~=one].first.one { position: absolute; top: 0; margin: 36px 0 0 60px; padding: 0; border: black 2em; border-style: none solid; /* shrink wraps around float */ } |
| [class~=one][class~=first] [class=second\ two][class="second two"] { float: right; width: 48px; height: 12px; background: yellow; margin: 0; padding: 0; } /* only content of abs pos block */ |
| |
| /* third line of face: width and overflow */ |
| .forehead { margin: 4em; width: 8em; border-left: solid black 1em; border-right: solid black 1em; background: red url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAADElEQVR42mP4%2F58BAAT%2FAf9jgNErAAAAAElFTkSuQmCC); /* that's a 1x1 yellow pixel PNG */ } |
| .forehead * { width: 12em; line-height: 1em; } |
| |
| /* class selectors headache */ |
| .two.error.two { background: maroon; } /* shouldn't match */ |
| .forehead.error.forehead { background: red; } /* shouldn't match */ |
| [class=second two] { background: red; } /* this should be ignored (invalid selector -- grammar says it only accepts IDENTs or STRINGs) */ |
| |
| /* fourth and fifth lines of face, with eyes: paint order test (see appendix E) and fixed backgrounds */ |
| /* the two images are identical: 2-by-2 squares with the top left |
| and bottom right pixels set to yellow and the other two set to |
| transparent. Since they are offset by one pixel from each other, |
| the second one paints exactly over the transparent parts of the |
| first one, thus creating a solid yellow block. */ |
| .eyes { position: absolute; top: 5em; left: 3em; margin: 0; padding: 0; background: red; } |
| #eyes-a { height: 0; line-height: 2em; text-align: right; } /* contents should paint top-most because they're inline */ |
| #eyes-a object { display: inline; vertical-align: bottom; } |
| #eyes-a object[type] { width: 7.5em; height: 2.5em; } /* should have no effect since that object should fallback to being inline (height/width don't apply to inlines) */ |
| #eyes-a object object object { border-right: solid 1em black; padding: 0 12px 0 11px; background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAIAAAD91JpzAAAABnRSTlMAAAAAAABupgeRAAAABmJLR0QA%2FwD%2FAP%2BgvaeTAAAAEUlEQVR42mP4%2F58BCv7%2FZwAAHfAD%2FabwPj4AAAAASUVORK5CYII%3D) fixed 1px 0; } |
| #eyes-b { float: left; width: 10em; height: 2em; background: fixed url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAIAAAD91JpzAAAABnRSTlMAAAAAAABupgeRAAAABmJLR0QA%2FwD%2FAP%2BgvaeTAAAAEUlEQVR42mP4%2F58BCv7%2FZwAAHfAD%2FabwPj4AAAAASUVORK5CYII%3D); border-left: solid 1em black; border-right: solid 1em red; } /* should paint in the middle layer because it is a float */ |
| #eyes-c { display: block; background: red; border-left: 2em solid yellow; width: 10em; height: 2em; } /* should paint bottom most because it is a block */ |
| |
| /* lines six to nine, with nose: auto margins */ |
| .nose { float: left; margin: -2em 2em -1em; border: solid 1em black; border-top: 0; min-height: 80%; height: 60%; max-height: 3em; /* percentages become auto (see 10.5 and 10.7) and intrinsic height is more than 3em, so 3em wins */ padding: 0; width: 12em; } |
| .nose > div { padding: 1em 1em 3em; height: 0; background: yellow; } |
| .nose div div { width: 2em; height: 2em; background: red; margin: auto; } |
| .nose :hover div { border-color: blue; } |
| .nose div:hover :before { border-bottom-color: inherit; } |
| .nose div:hover :after { border-top-color: inherit; } |
| .nose div div:before { display: block; border-style: none solid solid; border-color: red yellow black yellow; border-width: 1em; content: ''; height: 0; } |
| .nose div :after { display: block; border-style: solid solid none; border-color: black yellow red yellow; border-width: 1em; content: ''; height: 0; } |
| |
| /* between lines nine and ten: margin collapsing with 'float' and 'clear' */ |
| .empty { margin: 6.25em; height: 10%; /* computes to auto which makes it empty per 8.3.1:7 (own margins) */ } |
| .empty div { margin: 0 2em -6em 4em; } |
| .smile { margin: 5em 3em; clear: both; /* clearance is negative (see 8.3.1 and 9.5.1) */ } |
| |
| /* line ten and eleven: containing block for abs pos */ |
| .smile div { margin-top: 0.25em; background: black; width: 12em; height: 2em; position: relative; bottom: -1em; } |
| .smile div div { position: absolute; top: 0; right: 1em; width: auto; height: 0; margin: 0; border: yellow solid 1em; } |
| |
| /* smile (over lines ten and eleven): backgrounds behind borders, inheritance of 'float', nested floats, negative heights */ |
| .smile div div span { display: inline; margin: -1em 0 0 0; border: solid 1em transparent; border-style: none solid; float: right; background: black; height: 1em; } |
| .smile div div span em { float: inherit; border-top: solid yellow 1em; border-bottom: solid black 1em; } /* zero-height block; width comes from (zero-height) child. */ |
| .smile div div span em strong { width: 6em; display: block; margin-bottom: -1em; /* should have no effect, since parent has top&bottom borders, so this margin doesn't collapse */ } |
| |
| /* line twelve: line-height */ |
| .chin { margin: -4em 4em 0; width: 8em; line-height: 1em; border-left: solid 1em black; border-right: solid 1em black; background: yellow url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAABACAIAAAFSDNYfAAAAaklEQVR42u3XQQrAIAwAQeP%2F%2F6wf8CJBJTK9lnQ7FpHGaOurt1I34nfH9pMMZAZ8BwMGEvvh%2BBsJCAgICLwIOA8EBAQEBAQEBAQEBK79H5RfIQAAAAAAAAAAAAAAAAAAAAAAAAAAAID%2FABMSqAfj%2FsLmvAAAAABJRU5ErkJggg%3D%3D) /* 64x64 red square */ no-repeat fixed /* shouldn't be visible unless the smiley is moved to the top left of the viewport */; } |
| .chin div { display: inline; font: 2px/4px serif; } |
| |
| /* line thirteen: cascade and selector tests */ |
| .parser-container div { color: maroon; border: solid; color: orange; } /* setup */ |
| div.parser-container * { border-color: black; /* overrides (implied) border-color on previous line */ } /* setup */ |
| * div.parser { border-width: 0 2em; /* overrides (implied) declarations on earlier line */ } /* setup */ |
| |
| /* line thirteen continued: parser tests */ |
| .parser { /* comment parsing test -- comment ends before the end of this line, the backslash should have no effect: \*/ } |
| .parser { margin: 0 5em 1em; padding: 0 1em; width: 2em; height: 1em; error: \}; background: yellow; } /* setup with parsing test */ |
| * html .parser { background: gray; } |
| \.parser { padding: 2em; } |
| .parser { m\argin: 2em; }; |
| .parser { height: 3em; } |
| .parser { width: 200; } |
| .parser { border: 5em solid red ! error; } |
| .parser { background: red pink; } |
| |
| /* line fourteen (last line of face): table */ |
| ul { display: table; padding: 0; margin: -1em 7em 0; background: red; } |
| ul li { padding: 0; margin: 0; } |
| ul li.first-part { display: table-cell; height: 1em; width: 1em; background: black; } |
| ul li.second-part { display: table; height: 1em; width: 1em; background: black; } /* anonymous table cell wraps around this */ |
| ul li.third-part { display: table-cell; height: 0.5em; /* gets stretched to fit row */ width: 1em; background: black; } |
| ul li.fourth-part { list-style: none; height: 1em; width: 1em; background: black; } /* anonymous table cell wraps around this */ |
| |
| /* bits that shouldn't appear: inline alignment in cells */ |
| .image-height-test { height: 10px; overflow: hidden; font: 20em serif; } /* only the area between the top of the line box and the top of the image should be visible */ |
| table { margin: 0; border-spacing: 0; } |
| td { padding: 0; } |
| |
| </style> |
| <link rel="appendix stylesheet" href="data:text/css,.picture%20%7B%20background%3A%20none%3B%20%7D"> <!-- this stylesheet should be applied by default --> |
| </head> |
| <body> |
| <h2 id="top">Hello World!</h2> |
| |
| <div class="picture"> |
| <p><table><tr><td></table><p class="bad"> <!-- <table> closes <p> per the HTML4 DTD --> |
| <blockquote class="first one"><address class="second two"></address></blockquote> |
| <div class="forehead"><div> </div></div> |
| <div class="eyes"><div id="eyes-a"><object data="data:application/x-unknown,ERROR"><object data="file://localhost/almost/certainly/nonexistent/file.html" type="text/html"><object data="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAAAYCAYAAAFy7sgCAAAGsUlEQVRo3u2ZbWwcZxHHf3s%2B7LNbO3ZjXBtowprGODRX0qpNQCjmJKuVKhMl1P2AkCwhFOIKkCBSm9IXavGFKAixIAECwkmWo5MrhRI3Ub40IEwQgp6aIDg3Cd6eEqyIHEteah%2B1E69vhw%2BZtTaX8704ZzkKjHS6271nZ56ZZ%2BY%2F%2F%2BdZKF%2FCwYshx3EkkggLsD1v4FQkEZZYLCbAKyG9%2Ba9EIsG6hnUAf8x74K3aUC3j4%2BM54HcsR2oAIomwZOezkv%2FnSHpYNh%2BNCmAE7xv94zvFdd1bHsjMZmQkPSxAJP%2B%2FfuBLwK54PC7JZFKAVJmzXLBt2w%2FMvcDLwIb8QS8CeJ4nkURYIomw7J%2FYJ8BvSiiXptGGxWds2%2Fa9%2Bnaxh%2BYAD%2Bgt04NDgABTpQY2cvvSFLzw86gWeBVwC8SzlOSv2YeBPfmDBoBHgKmR9LBEEmHZfDTqGykqfkUE0nA78BzQGfSgUeP3wNeTXwXg7MwZDhw4UHL6ra2ti79%2FOvljgG8AZ4H64Lhm4MvAocxsRppGG%2FxcXihlwLIs6R%2FfKV2HO%2F26uA94pdDYUKUZUU7W1RQYXA98Gnhaf5%2FXWX0HeAHYoQonqa4sZSOsSWMCWeC9Yko%2BCQwBe4E6oNc0Tc91XTl1%2BaTsn9gnI%2Blhyc5nZWxsrBIkKSbl2tiic3tW53YDEwOKaoFBrcOfqKee53lG9xsPMjV784r%2F4lO%2FpPvyJ9iyZcuvFSaXK5XYeAZ4CDgGvB3MS4B54LQuWYPeuy4iRFsevsXqpuYoqVQKIH2bK1CuDQNo11o4XUzh%2FcDWYIe1LEtyuZx4niee54njOGKapgfsqlL%2Bl2OjEXg8nxrc1dJ0h3hbtL%2BGCtz7KPBF4CuBe9uB15VafE8hr9qylI3HgG8C2%2FK7VyHZoJj7MrBRm30qFotJMpkU27YlHo%2F7Ha5a%2BV%2FKRkSJ4KuKRLVLKapTjB1SzAVIjY2NSXY%2BKyPpYdk%2FsU9OXT4pruv6BdZbBQfKsVGnvWlIe1VB6VQO8JxC1vZYLCbZ%2BaxsPhpdZDyRRFhG0sPiOE6ldKBg2lRg4xF1YCDIIIKN7DGgD3gH%2BBXwejKZfPrs2tPs%2FvPN2bKuYR1nd7xLKBSSJeqoXKnERjPwNWAG%2BLn2rZuM%2B4Tpml6vaWlp4eLcxVusZq5lCgVgOVKJjRqdX86ffL4D5wIoZACnTpw4wRMdT96i%2FImOJxERAs4uVyqxUacF%2FPdiCj%2BjdRBRGFtwXVdG0sPSdbhTmkYbpH98p2RmM2JZlig1vl0GWo4NQ%2Fn%2Bs5pKRXfwjweaxy7TND3HcRZbfC6X8xVPVQlGy7WxVWlO5XRXFXm6EZmrQuSXYyPE3SiVoEhE6Wyr0u2rumO6zv%2B21AFdQAswC1wCMuUCXCmyWQus103Qg8qlDO0lxwOb%2Fl4FiK3AB3VS%2FuKKLtK%2FgbeAnwG%2FvUODuRw%2FFrR0H1UC75fwu8oJ%2FhFsW5VIG%2FBUgEIN6Y65O4AHu4Ap0zQ9y7LEcZyb9lRBUHQcRyzL8unZVBW5bFWAvAp%2BhDQ2g4F47dUYtlU6obXA54DnVdFLekjUGGifh4AFy7LEdV3xj3X9I66m0QZpGm2QrsOd0j%2B%2BU0bSw5KZzYjrun6HWlAd961i4FfCj0aN1Usau%2Bc1lmuXPFwvAEumUut7tQQvAb%2FXb%2FT0bCAej9cODg7yt%2Bm%2F8q2%2F7OUHZ76PnZ1k2p0mJzlykmPancbOTnL0whHs7CQfb%2B5mx2d3sH79%2BtCRI0c6FeaOr9ICrIQfLvA%2B8BGNXxi4R6HrisJVUWrxAVW2oMFf0Aczim8o3kV6enowDIPjF9%2Fk%2BMU3S3rrjzMMg56eHr%2BxP7qKFbASfojG6kpeDGs1tiW53RxwWT%2Bin5q8w4xpQK5evQpAR30H7ZH2khNvj7TTUd8BgD4rqmu1ZKX8qNeY%2BfHz4zlXDgT5E8tpCTUq7XSBC4Euv8227TV9fX1E73%2BYtvo27BmbS9cvFVTY3bSRFza9yOcf6Gfmygy7d%2B%2Fm%2FPnzF4DvrsBLhnJlJfwIKXxv1PheAE4qK6p4H9AGbNKTuhngBPBPXYRe4IemaT5kWZbR19fHNbmGnZ1k4r3U4glDR30Hm5qjbGjsImJEOHbsGHv27JFz5869o0eFq01Jq%2BmHAXwI6FFKagMTgHM7GzFDS%2BoeLSMv7zjzC9x4Y7gxFovVDAwMEI1GaWlpWSzRVCrFwYMH%2FXfxZ4AfAa8B%2F7lDaGg1%2FQgp43lfK0yqtRMuJa3ceKe5DfgYsCYAZ2ngD8CfAkzqTpW7xY%2F%2FSznyX%2FVeUb2kVmX4AAAAAElFTkSuQmCC">ERROR</object></object></object></div><div id="eyes-b"></div><div id="eyes-c"></div></div> <!-- that's a PNG with 8bit alpha containing two eyes --> |
| <div class="nose"><div><div></div></div></div> |
| <div class="empty"><div></div></div> |
| |
| <div class="smile"><div><div><span><em><strong></strong></em></span></div></div></div> |
| <div class="chin"><div> </div></div> |
| <div class="parser-container"><div class="parser"><!-- ->ERROR<!- --></div></div> <!-- two dashes is what delimits a comment, so the text "->ERROR<!-" earlier on this line is actually part of a comment --> |
| <ul> |
| <li class="first-part"></li> |
| <li class="second-part"></li> |
| <li class="third-part"></li> |
| <li class="fourth-part"></li> |
| |
| </ul> |
| <div class="image-height-test"><table><tr><td><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAABACAIAAAFSDNYfAAAAaklEQVR42u3XQQrAIAwAQeP%2F%2F6wf8CJBJTK9lnQ7FpHGaOurt1I34nfH9pMMZAZ8BwMGEvvh%2BBsJCAgICLwIOA8EBAQEBAQEBAQEBK79H5RfIQAAAAAAAAAAAAAAAAAAAAAAAAAAAID%2FABMSqAfj%2FsLmvAAAAABJRU5ErkJggg%3D%3D" alt=""></td></tr></table></div> |
| </div> |
| </body> |
| </html> |
