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Nn V4 6 V6 Css Compatibility Charts
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The following page shows result of CSS compatibility testing between Netscape 4.6 and Netscape 6.0 preview release.
F=Fully Supported
B=Buggy Implementation (fails at least one part of test, but does implement other portions
N=Not Supported (or so buggy as to be useless)
Suite Two: Pseudo-Classes and Pseudo-Elements
Suite Three: Cascading Order
Suite Four: Formatting
Suite Five: Font Properties
Suite Six: Color and Background Properties
Suite Seven: Text Properties
Suite Eight: Box Properties
Netscape 4.6 Acid Test
Reference Image
Suite Nine: Classification Properties
Suite Ten: Units
Suite Eleven: CSS1 Compatibility
· Netscape 6
F=Fully Supported
B=Buggy Implementation (fails at least one part of test, but does implement other portions
N=Not Supported (or so buggy as to be useless)
Note: Results based on my interpretation of
the test outcomes and should not be considered 100% accurate. Suite One: General Concepts Property all block inline
link F B n/a n/a
@import F N n/a n/a
grouping F F n/a n/a
inheritance F F n/a n/a
class as selector F F n/a n/a
id as selector B B n/a n/a
contextual selector F N n/a n/a
comments F F n/a n/a
Suite Two: Pseudo-Classes and Pseudo-Elements
Property all block inline
anchor B N n/a n/a
first-line F N n/a n/a
first-letter F N n/a n/a
psuedo-elements in selectors F N n/a n/a
multiple psuedo elements B N n/a n/a
Suite Three: Cascading Order
Property all block inline
!important F N n/a n/a
cascading F N n/a n/a
Suite Four: Formatting
Property all block inline
vertical formatting n/a B B n/a
horizontal formatting n/a F N n/a
floating elements n/a B N n/a
floating inline elements n/a n/a F N
replaced elements (display) n/a F N n/a
canvas F N n/a n/a
Suite Five: Font Properties
Property all block inline
family B B n/a n/a
style F B n/a n/a
variant F B n/a n/a
weight B B n/a n/a
size (relative) B F n/a n/a
size (units) F F n/a n/a
font (shorthand) F B n/a n/a
Suite Six: Color and Background Properties
Property all block inline
color F F n/a n/a
background-color F F n/a F B
background-image n/a F F n/a
background-repeat F F F B n/a
background-attachement F B n/a n/a
background-position F B F B n/a
background (shorthand) F B n/a n/a
Suite Seven: Text Properties
Property all block inline
word-spacing n/a F N n/a
letter-spacing n/a F N n/a
text-decoration n/a F B F B
vertical-align n/a F B n/a
text-transform n/a F B F B
text-align n/a B F n/a
text-indent n/a B B n/a
line-height n/a F B F B
Suite Eight: Box Properties
Property all block inline
margin-top n/a F F F F
margin-right n/a F B F B
margin-bottom n/a B B B F
margin-left n/a F B F B
margin n/a B B F B
padding-top n/a F F F B
padding-right n/a F B F B
padding-bottom n/a F B F B
padding-left n/a B B B F
padding n/a F B F B
border-top-width n/a F B F B
border-right-width n/a F B F B
border-bottom-width n/a F B F B
border-left-width n/a F B F B
border-width n/a F B F B
border-color n/a F N F N
border-style n/a F F F F
border-top n/a F N F N
border-right n/a F N F N
border-bottom n/a F N F N
border-left n/a B N F N
border n/a F B F B
width n/a F B n/a
height n/a F N n/a
float n/a F F n/a
float/margin n/a F B n/a
float (text) n/a F B n/a
float (series) n/a F N n/a
clear n/a B B n/a
clear/float n/a F B n/a
acid test n/a F B n/a
Netscape 6 Acid Test 
Netscape 4.6 Acid Test
Reference Image
Suite Nine: Classification Properties
Property all block inline
display F B n/a n/a
white-space F B n/a n/a
list-style-type F F n/a n/a
list-style-image F N n/a n/a
list-style-position F N n/a n/a
list-style F B n/a n/a
Suite Ten: Units
Property all block inline
length F F n/a n/a
percentage F F n/a n/a
color F B n/a n/a
urls F N n/a n/a
Suite Eleven: CSS1 Compatibility
Property all block inline
forward-compatible parsing F B n/a n/a