A quick go to guide for CSS goodness. Checkout the pretty version.
##CSSCS Nav
###Selectors
Universal Selector * {}
Type Selector h1, h2 ,h3 {}
Child Selector ul > li {}
Descendant Selector p a {}
Class Selector .class {}
ID Selector #id {}
Adjacent Sibling Selector h1 + p {}
General Sibling Selector h1 ~ p {}
Attribute Selector [attribute="SomeValue"] {}
###Pseudo Selectors
Mouse Over Selector a:hover {}
Active Link Selector a:active {}
Focus Selector input:focus {}
Visited Links Selector a:visited {}
Link Selector .class:link {}
First Line Selector p::first-line {}
First Letter Selector p::first-letter {}
First Child Selector p:first-child {}
Last Child Selector p:last-child {}
:nth-child Selector p:nth-child() {}
First Element of its Parent Selector p:first-of-type {}
Checked elements selector input:checked {}
Disabled elements selector input:disabled {}
Enabled elements selector input:enabled {}
Elements that have no Children Selector (including text nodes) p:empty {}
Not a Specified Element Selector :not(p) {}
###Font Styling
Font style font-style: normal | italic | oblique
Font Variant font-variant: normal | small-caps
Font Weight font-weight: normal | bold | bolder | lighter | 100 - 900
Vertical Alignment vertical-align: baseline | 10px | sub | super | top | text-top | middle | bottom | text-bottom | initial
Font Size font-size: 12px | 0.8em | 80%
Text Transform text-transform: capitalise | lowercase | uppercase
Space Between Characters letter-spacing: normal | 4px
Line Height line-height: normal | 3em | 34%
Horizontal Alignment text-align: left | right | center | justify
Text Decoration text-decoration: none | underline | overline | line-through
Indent First Line text-indent: 25px
Font Family font-family: 'Open Sans', sans-serif
###Position
Position position: static | relative | absolute | fixed | sticky
Left Position left: 10px | 10% | auto
Top Position top: 10px | 10% | auto
Float Element float: left | right | none
Clear Floating Elements clear: none | left | right | both
Z Index z-index: 3 | auto | inherit
###Background
Background Image background-image: url()
Background Repeat background-repeat: repeat-x | repeat-y | repeat | space | round | no-repeat
Background Color background-color: #2AA9E0
Background Position background-position: top | right | bottom | left | center
Background Attachment background-attachment: scroll | fixed | local | initial | inherit
###Box properties
Margin margin-top: 2px margin-right: 4px | auto margin-bottom: 6px margin-left: 8px | auto margin: 2px 4px 6px 8px | 0 auto
Padding padding-top: 2px padding-right: 4px | auto padding-bottom: 6px padding-left: 8px | auto padding: 2px 4px 6px 8px | 0 auto
Border Color border-color: #2AA9E0
Border Style border-style: none | hidden | dotted | dashed | solid | double | groove | ridge | inset | outset
Border Width border-width: 10px
###List Styling
List Type list-style-type: disc | circle | square | none
List Position list-style-position: inside | outside
List Image list-style-image: url();
Cheatsheet by Adam Marsden