Added things

Fixed positioning
min-width, max-width
min-height, max-height
Attribute selectors
Child selector
Adjacent sibling selector
:first-child
Chained classes and pseudo-classes
Arbitrary-element :hover
Full background-attachment: fixed
Alpha channel in PNG images
ABBR tag


--

They fixed fixed!

div#footer {
	position: fixed;
	bottom: 0;
	left: 0; right: 0;
	padding: 0.5em 1em;
	background: white;
	border-top: 1px solid gray;
}
body {
	padding-bottom: 5em;
}

--

body > div {
	border: 1px solid red;
}
body > div > div {
	border: 1px dotted red;
}

--

#ericmeyer > *:first-child {
	cuteness: 100;
}

#ericmeyer:first-child {
	pedantics: xx-large;
}

td:first-child {
	background: yellow;
}

--

Attribute selectors

CSS2.1

[attr]
[attr="val"]
[attr~="val"]
[attr|="val"]

CSS3

[attr*="val"]
[attr^="val"]
[attr$="val"]

--

img[src$=".gif"] {
	border: 3px solid red;
}
img[src$=".jpg"] {
	border: 3px solid lime;
}


div[id] {
	border: 1px dotted red;
	margin: 1px;
}


img {
	border: 5px solid red;
}
img[alt] {
	border-style: none !important;
}


--

a[href$=".pdf"] {
	padding-right: 18px;
	background: url(/pix/pdf-icon.gif) 
	  100% 50% no-repeat;
}

a[title*="(PDF"] {
	padding-right: 18px;
	background: url(/pix/pdf-icon.gif) 
	  100% 50% no-repeat;
}

*[href*="aneventapart.com"] {
	font-weight: bold;
	color: maroon;
	background: #AEA571;
}

th[scope="col"] {
	border-top: 1px solid black;
	border-bottom: 1px solid black;
}
th[scope="row"] {
	border-right: 1px solid black;
}
th[scope="row"] + td {
	padding-left: 0.75em;
}


--

What about Number 6?

Dean Edwards has your fix

--

Dead bugs

Peekaboo bug
Guillotine bug
Duplicate character bug
Duplicate indent
3-pixel text jog
Creeping text bug
Double float margin bug
Bottom margin bug on hover
IE/Win line-height bug
Quirky percentages in IE
List item whitespace bug
Moving viewport scrollbar outside HTML borders
Border chaos
Text highlighting under a top border
No Scroll bug
Disappearing list background
width:auto
Dotted border style
XML prolog triggering quirks mode

--

Dead parsing bugs

* html
html>body
head+body
_height
overriding !important

--

New and surviving parsing bugs!

*+html
html*
html>/**/body
@import media

--

What the Hack...?

Conditional comments are reliable and reduce the kabbalistic quotient in your CSS

* html #example {height: 0;}
*+html #example {min-height: 0;}



div#footer {
	position: fixed;
	bottom: 0;
	left: 0; right: 0;
	padding: 0.5em 1em;
	background: white;
	border-top: 1px solid gray;
}
* html div#footer {
	position: absolute;
}
body {
	padding-bottom: 5em;
	position: relative;
}

--

Layout-wise, it's pretty much like any other current browser (FF, Safari, Opera, etc.) with the inevitable weird quirks here and there