import panel as pn

pn.extension()

str_pane = pn.pane.Str(
    'This is a raw string which will not be formatted in any way except for the applied style.',
    styles={'font-size': '12pt'}
)

str_pane

str_pane.object = 1.3234232

str_pane.object = 'This is a raw string which will not be formatted in any way except for the applied style.'