Thread:BlahBlahBlahLOL/@comment-218.186.15.10-20130608114449/@comment-2151409-20130618180933

You extend the line by adding more of these ─. Sorry, I should have made that clearer. :(

Eg. ┬ shape on its own.

┬

Eg. ┬ shape with ─ shapes before and after it.

───┬───

Hope that helps. :)