Matrix (Input Table) doesn't resize

I've tried everything I know to get the table and columns to size to the desired width. I want the Table Width to be 450px wide. I want the fillable columns to be 100px wide. I'd actually like to size each column differently, but that's probably not possible with this application.

The form itself is set at 500 pixels.

I'm liking Version 3 better and better. The upgrade to 4.0 is very undesirable. You guys destroyed a good product.

I have checked your form, and I see that the maximal width for your form's matrix tables is set to only 300 pixels, so your matrix fields cannot take more than 300 pixels of width.

If you wish to disable this or increase it for all the matrix tables on your form, you can simply inject the following custom CSS to your form:

.form-matrix-table {
    max-width: none;
}

However, if you want to affect only this one field you've mentioned, I would recommend the following code instead as it has greater specificity and will not affect any other fields:

#id_14 .form-matrix-table {
    max-width: none;
}

Please try it out, and let us know should you need further assistance.