How can I add a whitespace to a filter?

[Sev]

Using the element helper, I can get rid of a page element easily. But sometimes, the page element has a space character after it, which I want to get rid of as well.

But adding a literal " " at the end of the filter rule doesn't work. So, how can I do this?

[Wladimir Palant]

"A space" is a text node - and CSS selectors cannot be applied to text nodes, only to page elements containing them. So most likely the answer is: you cannot. But maybe somebody will be able to find a way if you show a particular example (link to a webpage and tell what exactly you would like to remove).