
The Complete Idiot's HTML Tag Reference
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<COLGROUP>
Sets properties for a group of columns within a table.
Support:
-
Notes:
- This tag must appear before any other table structure tags (such as <TH> or <TR>.
- To set properties for an individual column, use the <COL> tag.
Attributes:
- ALIGN
= "Text"
The horizontal alignment of text within each column in the group.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
Not supported |
Notes:
-
Possible values: LEFT, CENTER, RIGHT.
- BGCOLOR
= "Color value"
The color to use for the background of each column in the group.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
Not supported |
4.0 and later |
Not supported |
Notes:
-
Use either an RGB value or a color name.
- Try to use a color that's compatible with the color you're using for your column text.
- CHAR
= "Text (single character)"
The common character upon which each cell in the columns will be aligned.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
Not supported |
Not supported |
Notes:
-
The default character is the decimal point.
- CHAROFF
= Positive integer
The amount of space, in pixels, between each column's left edge and the first occurrence of the character specified by CHAR.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
Not supported |
Not supported |
Not supported |
Notes:
-
If you use the <BDO> tag to change the text direction to right-to-left, then this offset is measured from the right edge of the column.
- CLASS
= "Text"
The style sheet class used by the tag.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
Not supported |
Notes:
-
You can specify two or more classes; be sure to separate each class name with a space.
- ID
= "Text"
An alphanumeric string that uniquely identifies the tag.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
Not supported |
Notes:
-
Although you can use letters and numbers for the ID, the first character must be a letter.
- LANG
= "Text"
The language used by the tag's attribute values and text content.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
Not supported |
- SPAN
= Positive integer
The number of columns in the group.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
3.0 and later |
Not supported |
Notes:
-
You can use this attribute instead of adding separate <COL> tags.
- STYLE
= "Text"
The style or styles to use with the tag.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
Not supported |
Notes:
-
If you enter multiple style properties, separate each one with a semi-colon (;).
- VALIGN
= "Text"
The vertical alignment of text within each column.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
Not supported |
Notes:
-
Possible values: TOP, MIDDLE, BOTTOM, BASELINE.
- WIDTH
= Positive integer
Specifies the width, in pixels, of each column in the group.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
Not supported |
Example:
<TABLE BORDER>
<COLGROUP ALIGN="LEFT" SPAN=2> <--This applies to columns one and two
</COLGROUP>
<COLGROUP ALIGN="RIGHT" SPAN=2> <--This applies to columns three and four
</COLGROUP>
<TH>The first column</TH>
<TH>The second column</TH>
<TH>The third column</TH>
<TH>The fourth column</TH>
<TR>
<TD>Left-aligned</TD>
<TD>Left-aligned</TD>
<TD>Right-aligned</TD>
<TD>Right-aligned</TD>
</TR>
<TR>
<TD>Left-aligned</TD>
<TD>Left-aligned</TD>
<TD>Right-aligned</TD>
<TD>Right-aligned</TD>
</TR>
</TABLE>
How It Looks:
The first column |
The second column |
The third column |
The fourth column |
Left-aligned |
Left-aligned |
Right-aligned |
Right-aligned |
Left-aligned |
Left-aligned |
Right-aligned |
Right-aligned |
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