Cheatsheets

These web development cheatsheets are a quick reference to common functions, commands and other computer instructions used with the various web development technologies. Most of the below cheatsheets are courtesy of Added Bytes

HTML

Document Outline
Comments
Page Information
Document Structure
Links
Text Markup
Lists
Forms
Tables
Images & Image Maps

HTML5

article
audio
canvas
footer
header
keygen
section
time
video
and more

CSS

Selectors
Pseudo-Selectors/Classes
Sizes & Colours
Box Model
Positioning
Dimensions
Color / Background
Text
Fonts
Boxes

Javascript

Methods
DOM Methods
XMLHttpRequest
Javascript in HTML
Regular Expressions
Event Handlers
Functions
Functions & Methods

PHP

Array Functions
String Functions
Filesystem Functions
fopen() Modes
Regular Expression Functions
Regular Expression Syntax
PCRE Modifiers
Date & Time Functions
Date Formatting

RGB Hexadecimal Codes

Including:
         = #ff0000
         = #00ff00
         = #0000ff
         = #ffffff
         = #000000
         = #993399
         = #cc9933
         = #b1b1b1