Pane

Pane[expr] displays as a pane containing expr. 

Pane[expr,w] makes the pane be w printer's points wide, linewrapping the contents if necessary.

Pane[expr,{w,h}] makes the pane be w points wide and h points high, shrinking the contents if necessary.

Please visit the official Wolfram Language Reference for more details and examples on core symbols.