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10.9. Summary

CSS2 obviously covers a lot of ground, and exploring it in detail would probably have added at least four more chapters to this book, not to mention dramatically bulking up some of the chapters that already exist. However, since so little of CSS2 has actually been implemented at this writing, we felt it was better to provide an overview that was light on details. After all, the specification may change as implementations reveal flaws, and we'd rather stick to describing things that are fairly reliable.

For quick reference purposes, Table 10-1 gives a quick summary of everything new in CSS2.

Table 10-1. New Properties in CSS2

New Properties in CSS2

text-shadow
font-size-
adjust
font-stretch
unicode-bidi
cursor
outline
outline-color
outline-style
outline-width
content
quotes
counter-reset
counter-increment
marker-offset
border-top-color
border-right-color
border-bottom-color
border-left-color
border-top-style
border-right-style
border-bottom-style
border-left-style
position
direction
top
right
bottom
left
z-index
min-width
max-width
min-height
max-height
overflow
clip
visibility
page-break-before
page-break-after
page-break-inside
orphans
widows
size
marks
border-collapse
border-spacing
table-layout
border-spacing
empty-cells
caption-side
speak-header-cell
volume
speak
pause-before
pause-after
pause
cue-before
cue-after
cue
play-during
azimuth
elevation
speech-rate
voice-family
pitch
pitch-range
stress
richness
speak-punctuation
speak-rate
speak-numeral
speak-time

New Pseudo-Classes and Pseudo-Elements in CSS2

:hover
:left
:right
:first
:before
:after

New @-rules in CSS2

@media
@font-face
@page

Table 10-2. New Values in CSS2

All Properties

inherit

The display Property

run-in
compact
marker
table
inline-table
table-row-group
table-column-group
table-header-group
table-footer-group
table-row
table-cell
table-caption 

The font Property

caption
icon
menu
message-box
small-caption
status-bar

The list-style-type Property

decimal-leading-zero
hebrew
georgian
armenian
cjk-ideographic
hiragana
katakana
hiragana-iroha
katakana-iroha
lower-greek

The color values

active-border
active-caption
app-workspace
background
button-face
button-highlight
button-text
caption-text
gray-text
highlight
highlight-text
inactive-border
inactive-caption
info-background
info-text
menu
menu-text
scrollbar
three-d-dark-shadow
three-d-face
three-d-highlight
three-d-lightshadow
three-d-shadow
window
window-frame
window-text

The vertical-align Property

length 
margins.

Figure 7-5

Figure 7-5. Paragraphs with, and without, margins

The simplest way to set a margin is by using the propertymargin.

margin

WARNING

Percentage values refer to width of the parent element.



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effect on the line height, and since margins are effectively transparent, this will have no visual effect whatsoever -- as you can see for yourself in Figure 7-21.

Figure 7-21

Figure 7-21. Margins on an inline element

This happens because margins on inline elements don't change the line height of an element. (In fact, the only properties that can change the distance between lines containing only text are line-height, font-size, and vertical-align.)detailed in Chapter 11, "CSS in Action".

Figure 7-27

Figure 7-27. Overlapping text in Explorer

It gets worse, unfortunately. If you apply margins to inlineelements, as was discussed previously, you'll get results fromNavigator 4.x like those shown in Figure 7-28.

Figure 7-28

Figure 7-28. Margins, inline elements, and Navigator 4.x

The style used to generate Figure 7-28 was asfollows:

Neither is really convenient, given all the typing involved. Fortunately, a better solution is available:

H1 {border-bottom: thick solid gray;}

This will apply the values to the bottom border alone, as shown in Figure 7-45, leaving the others to their defaults. Since the default border style is none, no borders appear on the other three sides of the element.

Figure 7-45

Figure 7-45. Shorthand properties make styles easier