I have typeset a heading (heading 1, to be exact) with the following properties:
alignment of heading 1: right-aligned
indentation of heading 1: 12 cm (meaning each heading has a horizontal space of 12 cm on its right)
paragraph box/frame of heading 1: underlined
Now the problem is that the underline only goes to the very end of the last letter of each heading, i.e. the indentation border 12 cm from the right text area. I'd like to have the underline go to the very right of the text area. How can I do that?