\showmakeup

\starttext

\strut \hfill first line
\blank[overlay]
second line \hfill \strut

\ruledvbox {
    \strut \hfill line 1
    \blank[overlay]
    line 2\hfill \strut
    \blank[overlay]
    \strut \hfill line 3\hfill \strut
}

\startitemize[n]
    \item bla
    \item \startitemize[a]
        \item bla $\displaystyle\int^{x^{y^4}}$ \item bla
    \stopitemize
\stopitemize

\stoptext
