Adobe Dreamweaver CS3 Instrukcja Użytkownika Pobierz pdf (Strona 184)

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DREAMWEAVER CS3

User Guide

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Ifyoudonotseeawidthforthetableorforacolumn,thenthattableorcolumndoesnothaveaspecifiedwidthin

theHTMLcode.Iftwonumbersappear,thenthevisualwidthasitappearsinDesignviewdoesn’tmatchthewidth

specified in the HTML code. This can happen when you resize a table by dragging its lower-right corner or when

you add content to a cell that’s larger than its set width.

For example, if you set a column’s width to 200 pixels and then add content that stretches the width to 250 pixels, two

numbers appear for that column: 200 (the width specified in the code) and (250) in parentheses (the visual width of

the column as it’s rendered on your screen).

Note: You can also lay out your pages using CSS positioning.

See also

“Laying out pages with CSS” on page 145

“Laying out pages in Layout mode” on page 191

Table formatting precedence in HTML

When formatting tables in Design view, you can set properties for the entire table or for selected rows, columns, or

cells in the table. When a property, such as background color or alignment, is set to one value for the whole table and

another value for individual cells, cell formatting takes precedence over row formatting, which in turn takes prece-

dence over table formatting.

The order of precedence for table formatting is as follows:

1 Cells

2 Rows

3 Tabl e

Forexample,ifyousetthebackgroundcolorforasinglecelltoblue,thensetthebackgroundcoloroftheentiretable

to yellow, the blue cell does not change to yellow, since cell formatting takes precedence over table formatting.

Note: When you set properties on a column, Dreamweaver changes the attributes of the

td tag corresponding to each

cell in the column.

About splitting and merging table cells

You can merge any number of adjacent cells—as long as the entire selection is a line or a rectangle of cells—to

produce a single cell that spans several columns or rows. You can split a cell into any number of rows or columns,

regardless of whether it was previously merged. Dreamweaver automatically restructures the table (adding any

necessary

colspan or rowspan attributes) to create the specified arrangement.

Inthefollowingexample,thecellsinthemiddleofthefirsttworowshavebeenmergedintoasinglecellthatspans

two rows.

September 4, 2007

1 2 ... 179 180 181 182 183 184 185 186 187 188 189 ... 737 738

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