Book HomeCascading Style Sheets: The Definitive GuideSearch this book Friday 31st of October 2014 10:42:54 AM

10.7. Tables

Perhaps as a result of a generic need to be able to describe table layout -- something CSS1 lacks -- CSS2 includes a handful of features that apply directly to tables and table cells. First, there are 10 new table-related values for display:

table
inline-table
table-column-group
table-column
table-row-group
table-row
table-cell
table-caption
table-header-group
table-footer-group 

While the effects of most of these are obvious from their names, at least two may not be familiar to you. table-header-group and table-footer-group are used to mark the header and footer of a table. These are displayed, respectively, above or below lines, as shown in Figure 8-62.

Figure 8-62

Figure 8-62. Inline borders can be overlapped

One solution is to increase the line-height of the paragraph. This will affect every line in the entire element, not just the line in which the bordered hyperlink appears:

A:link {border: 5px solid blue;}
P {font-size: 14px; line-height: 24px;}

Because there is extra space added above and below each line, the all the rows of the table, but not outside of the table's caption.

Another interesting effect is that you can align text on a character by using the text-align property. For example, if you wanted to line up a column of figures on a decimal point, you might declare:

TD { text-align: "." }

As long as a set of cells are grouped into a column, their content will be aligned so that the periods all line up along a vertical axis.

Far from relying on existing properties, CSS2 provides a whole array of brand-new properties in the table section. Here are a few of them:

There are also properties describing how visibility and vertical-align are applied to tables. There is also a caption-side property, which functions exactly the same as the ALIGN attribute on the <CAPTION> tag, and the property speak-header-cell, which controls how header cells are handled by speech-generating browsers (more on that later).



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end, as shown in Figure 7-55.

Figure 7-55

Figure 7-55. An inline element with a border displayed across multiple lines of text, with the border boxes closed

It's also acceptable for the lines to be "open" asshown in Figure 7-54.

WARNING

Borders cannot be applied to inline elements inNavigator 4.x orExplorer styles from any LINK element with aREL of alternatestylesheet unless that style sheet is selected bythe user.

1.4.2. The STYLE Element

The STYLE element, which is a relatively new between positioning implementations.