Column width in summary view

Column width in summary view

hello,
how can we set the column width in a summary view ? The help files refer to a "set column width" option in the configuration menu, but this option is not available for a summury (only for views).
When I try to embed the summury in a web page, the view is too large and i wish to adjust the label size as well as the input field size.
How can we do that ?
Thanks for your help,