Tips for implementing varying styles depending on the number of columns in a table

I am working with multiple tables that share similarities, but differ in the number of columns each table has. I am looking to create a styling rule where depending on the number of columns, the width of each column will be set accordingly. For example, if there are 2 columns, the first td should be 80% and the second one should be 20%. If there are three columns, they should be 45%, 45%, and 10% respectively.

Is there a way to achieve this using CSS? And if not, how can it be done using JQuery?

htmlcss

Answer №1

It's my understanding that achieving this purely with CSS is not feasible because it requires calculating percentages and identifying the number of columns.

For demonstration purposes, I've created a JavaScript example in a fiddle, assuming an equal number of columns in each row without using colspan. Here is how it was accomplished:

var cols       = $('table tr:first td').size(),
    width      = 90 / cols,
    last_width = 10;

$('table td').css('width', width + "%");
$('table tr > td:last-child').css('width', last_width + "%");
​

The variables utilized are the column count, the size of the last column, and the size of the other columns (calculated as 90% of the total width divided by the number of columns). Subsequently, these widths are applied to all cells, with the last column width assigned to the final cell in each row.

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