\starttext

\showjustification \dontcomplain

\newdimen\MyHsize

\dostepwiserecurse {0} {100} {10} {
    \MyHsize\dimexpr\hsize -#1pt\relax
    {\hsize\MyHsize\setupalign[normal]     \input tufte \par}
    {\hsize\MyHsize\setupalign[flushleft]  \input tufte \par}
    {\hsize\MyHsize\setupalign[flushright] \input tufte \par}
    {\hsize\MyHsize\setupalign[center]     \input tufte \par}
}

\stoptext
