Please help us help you and fill where relevant:
LimeSurvey version: 6.6.1
Own server or LimeSurvey Cloud:
Survey theme/template:
==================
Hi,

When I set 7 columns for list (radio) (make answer horizontally), the space between each options are too wide as shown in attached picture, which makes them become 2 rows. How can I narrow the space between options, and make them in one row?
 

Thank you!

Best regards,
kiki
 

A simple solution would be to use an array type question with a single sub-question.

You could add some CSS to define a max-width for the table.

This would also nicely transform to a vertical layout on small screens.

Hi Tony,

Thank you!
I tried the Array also, while it looks strange since there is a title column in the left.

Set the(Sub)question width to 0.

- github.com/LimeSurvey/LimeSurvey/blob/59.../answer_row.twig#L17