Using "text-align: center" with CSS Colgroups: A Troubleshooting Guide
One common challenge encountered when formatting tables is aligning text horizontally. While the "text-align" property can be applied to table cells individually, it can sometimes seem to have no effect when applied to colgroups. Here's an explanation of why this occurs and a solution to overcome it.
The CSS Limitations of Colgroups
Despite their purpose of grouping and formatting columns, colgroups have a limited set of CSS properties they can apply. Unfortunately, "text-align" is not one of them. This means that even if you specify "text-align: center" on a colgroup, it won't affect the alignment of the text within its cells.
An Alternative Solution
To achieve centered text within a column in a table, you need to apply the "text-align: center" property directly to the table cells themselves. However, this raises another problem: the first column in the table is still not centered due to the presence of the left-aligned "th" element.
To resolve this, add the following CSS rules:
#myTable tbody td { text-align: center } #myTable tbody td:first-child { text-align: left }
These rules center all table cells except the first column, which remains left-aligned, ensuring proper alignment throughout the table.
Invalid HTML
It's worth mentioning that your HTML code is invalid as highlighted by the absence of a "tr" element within the "thead" element. This needs to be corrected to ensure proper HTML structure and browser support.
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