In a univeral theme application if you attempt to print a page with the side menu displayed, it takes up too much room.
These elements can be removed with CSS, and I found the margin needed to be trimmed after the menu hidden.
#t_Body_nav
{ display : none; }
#t_Body_content
{ margin-left : 0px !important; }
Yet if these are wrapped in a media query, during print preview or emulation (image) the margin-left is honoured, but the body remains indented
@media print {
#t_Body_nav
{ display : none; }
#t_Body_content
{ margin-left : 0px !important; }
}

I can't see what else I might need to include?
Basic sample
workspace:swesley
user:otn
pwd:forum
app: 88776
Note I'm only interested in media query solution, not printer_friendly. Though I do not there is no printer friendly template in t42, only honouring what's described in documentation.
Scott