Upon receiving a project, I noticed that Bootstrap "span" classes were used in tables extensively.
I am questioning the validity of the markup below. Can you explain if it is valid or not, and why?
<table class="table">
<tr>
<td class="span6">Hello</td>
<td class="span3">World</td>
<td class="span3">2013</td>
</tr>
</table>
My instinct tells me that using Bootstrap's "span" classes to define column widths in tables may not be the best approach.
While it's not technically incorrect, there is a more streamlined approach to defining column widths in a table. Instead of adding classes to each individual <td/> element, the use of the table's <colgroup/> tags provides a more efficient solution specifically tailored for formatting table columns.
<table class="table">
<colgroup>
<col class="span6" />
<col class="span3" />
<col class="span3" />
</colgroup>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
...
</table>
The coding is completely compliant. These are not technically span elements; they are merely CSS designs that achieve the desired outcome for the developer. Nevertheless, it's worth noting that any alterations in future versions could potentially lead to unforeseen consequences, hence this practice is discouraged.
In Bootstrap 2.x, you have the option to define the spans only within the thead th elements instead of specifying them for each individual row.
<table class="table">
<thead>
<tr>
<th class="span6">Words</th>
<th class="span3">More Words</th>
<th class="span3">Year</th>
</tr>
</thead>
<tbody>
<tr>
<td>Hello</td>
<td>World</td>
<td>2013</td>
</tr>
<tr>
<td>Hello</td>
<td>World</td>
<td>2014</td>
</tr>
...
</tbody>
</table>
For Bootstrap 3.x, make sure to replace spanX with col-sm-X
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