Commit d9a9615

<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: 100em 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 100em 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

.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 -->

<script type="text/javascript" src="../test.js"></script>

<div style="margin: 70px;"></div>

<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>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</div></div>

<div class="eyes"><div id="eyes-a"><object data="data:application/x-unknown,ERROR"><object data="http://www.damowmow.com/404/" 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>&nbsp;</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>