Sometimes, it’s just the default theme styles that can mess up the table table design.

If your previewed table doesn’t look like the table you made, chances are that theme styles cause the problem.

You can easily fix the issue by disabling theme styles for the table.

Go to the ‘Settings‘ tab (1) and open the ‘STYLES‘ section (2). Then enable ‘Disable Theme Styles‘ (3).

Now save the table and check the preview. Hope your table will look good now.