margin-left: 0em; -> margin-left:0;
margin-left: 0ex; -> margin-left:0;
margin-left: 0cm; -> margin-left:0;
margin-left: 0mm; -> margin-left:0;
margin-left: 0pt; -> margin-left:0;
margin-left: 0pc; -> margin-left:0;
margin-left: 0px; -> margin-left:0;
margin-left: 0%; -> margin-left:0;
Same for angles - http://www.w3.org/TR/CSS21/aural.html#angles
azimuth: 0deg; -> azimuth:0;
azimuth: 0rad; -> azimuth:0;
azimuth: 0grad; -> azimuth:0;
And time - http://www.w3.org/TR/CSS21/aural.html#times
transition: all 0s; -> transition:all 0;
transition: all 0ms; -> transition:all 0;
And lastly frequencies - http://www.w3.org/TR/CSS21/aural.html#frequencies
pitch: 0hz; -> pitch:0;
pitch: 0khz; -> pitch:0;
margin: 0px 10px 0px 10px; -> margin:0 10px;
margin: 5px 10px 2px 10px; -> margin:5px 10px 2px;
margin: 10px 10px 10px 10px; -> margin:10px;
margin: 10px 10px 10px; -> margin:10px;
margin: 10px 10px; -> margin:10px;
margin-top: 5px;
margin-right: 6px;
margin-bottom: 7px;
margin-left: 8px; -> margin:5px 6px 7px 8px;
margin-top: 5px;
margin-right: 6px;
margin-bottom: 5px;
margin-left: 6px; -> margin:5px 6px;
margin-top: 5px;
margin-right: 6px;
margin-bottom: 10px;
margin-left: 6px; -> margin:5px 6px 10px;
/* I'm very useful while developing */ -> (empty)
font-family: "Verdana", "Arial", "sans-serif";
-> font-family:verdana,arial,sans-serif;
filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=50);
-> filter:alpha(opacity=50);
All RGB values
rgb(255,255,255) -> #ffffff
Hex colors in which RR GG BB are the same:
#aabbcc -> #abc
#800000 -> maroon
#f00 -> red
#ffa500 -> orange
yellow -> #ff0
#808000 -> olive
#800080 -> purple
fuchsia -> #f0f
white -> #fff
#008000 -> green
#000080 -> navy
#008080 -> teal
black -> #000
#c0c0c0 -> silver
#808080 -> gray
aliceblue -> #f0f8ff
antiquewhite -> #faebd7
aquamarine -> #7fffd4
#f0ffff -> azure
#f5f5dc -> beige
#ffe4c4 -> bisque
blanchedalmond -> #ffebcd
blueviolet -> #8a2be2
#a52a2a -> brown
burlywood -> #deb887
cadetblue -> #5f9ea0
chartreuse -> #7fff00
chocolate -> #d2691e
#ff7f50 -> coral
cornflowerblue -> #6495ed
cornsilk -> #fff8dc
darkblue -> #00008b
darkcyan -> #008b8b
darkgoldenrod -> #b8860b
darkgray -> #a9a9a9
darkgreen -> #006400
darkgrey -> #a9a9a9
darkkhaki -> #bdb76b
darkmagenta -> #8b008b
darkolivegreen -> #556b2f
darkorange -> #ff8c00
darkorchid -> #9932cc
darksalmon -> #e9967a
darkseagreen -> #8fbc8f
darkslateblue -> #483d8b
darkslategray -> #2f4f4f
darkslategrey -> #2f4f4f
darkturquoise -> #00ced1
darkviolet -> #9400d3
deeppink -> #ff1493
deepskyblue -> #00bfff
dodgerblue -> #1e90ff
firebrick -> #b22222
floralwhite -> #fffaf0
forestgreen -> #228b22
gainsboro -> #dcdcdc
ghostwhite -> #f8f8ff
#ffd700 -> gold
goldenrod -> #daa520
greenyellow -> #adff2f
honeydew -> #f0fff0
indianred -> #cd5c5c
#4b0082 -> indigo
#fffff0 -> ivory
#f0e68c -> khaki
lavender -> #e6e6fa
lavenderblush -> #fff0f5
lawngreen -> #7cfc00
lemonchiffon -> #fffacd
lightblue -> #add8e6
lightcoral -> #f08080
lightcyan -> #e0ffff
lightgoldenrodyellow -> #fafad2
lightgray -> #d3d3d3
lightgreen -> #90ee90
lightgrey -> #d3d3d3
lightpink -> #ffb6c1
lightsalmon -> #ffa07a
lightseagreen -> #20b2aa
lightskyblue -> #87cefa
lightslategray -> #789
lightslategrey -> #789
lightsteelblue -> #b0c4de
lightyellow -> #ffffe0
limegreen -> #32cd32
#faf0e6 -> linen
magenta -> #f0f
mediumaquamarine -> #66cdaa
mediumblue -> #0000cd
mediumorchid -> #ba55d3
mediumpurple -> #9370db
mediumseagreen -> #3cb371
mediumslateblue -> #7b68ee
mediumspringgreen -> #00fa9a
mediumturquoise -> #48d1cc
mediumvioletred -> #c71585
midnightblue -> #191970
mintcream -> #f5fffa
mistyrose -> #ffe4e1
moccasin -> #ffe4b5
navajowhite -> #ffdead
olivedrab -> #6b8e23
orangered -> #ff4500
#da70d6 -> orchid
palegoldenrod -> #eee8aa
palegreen -> #98fb98
paleturquoise -> #afeeee
palevioletred -> #db7093
papayawhip -> #ffefd5
peachpuff -> #ffdab9
#cd853f -> peru
#ffc0cb -> pink
#dda0dd -> plum
powderblue -> #b0e0e6
rosybrown -> #bc8f8f
royalblue -> #4169e1
saddlebrown -> #8b4513
#fa8072 -> salmon
sandybrown -> #f4a460
seagreen -> #2e8b57
seashell -> #fff5ee
#a0522d -> sienna
slateblue -> #6a5acd
slategray -> #708090
slategrey -> #708090
#fffafa -> snow
springgreen -> #00ff7f
steelblue -> #4682b4
#d2b48c -> tan
#ff6347 -> tomato
turquoise -> #40e0d0
#ee82ee -> violet
#f5deb3 -> wheat
whitesmoke -> #f5f5f5
yellowgreen -> #9acd32
normal -> 400
bold -> 700
azimuth: left-side; -> azimuth:270deg;
azimuth: far-left; -> azimuth:300deg;
azimuth: 320deg; -> azimuth:left;
azimuth: center-left; -> azimuth:340deg;
azimuth: center; -> azimuth:0;
azimuth: center-right; -> azimuth:20deg;
azimuth: far-right; -> azimuth:60deg;
azimuth: right-side; -> azimuth:90deg;
/* if 90deg < x <= 180deg then x := 180deg - x */
azimuth: behind 120deg; -> azimuth:-60deg;
/* if 180deg < x <= 270deg then x := 540deg - x */
azimuth: behind 230deg; -> azimuth:310deg;
elevation: -90deg; -> elevation:below;
elevation: level; -> elevation:0;
speech-rate: x-slow; -> speech-rate:80;
speech-rate: slow; -> speech-rate:120;
speech-rate: fast; -> speech-rate:300;
speech-rate: x-fast; -> speech-rate:500;
/* there could be previous properties on this node
(that you can't know about until you have a DOM and all styles)
that could be wiped out by this short-hand */
background-color: red; -> background:red;
body >/**/ a { color: red; /* IE7 */ }
body { color/*\*/: red; /* IE 5 */ } -> leave these hacks