[Tex/LaTex] tcolorbox box width

tcolorbox

In this question, Measure distance from text to bottom margin, an answer is using tcolorbox to provide a box that fills the remaining length of the page. However, when the box is indented by, say, an itemize environment, the width of the box is not reduced and the box width exceeds the right paper margin. How may I achieve the correct width of this tcolorbox?

\documentclass[]{article}

\usepackage[showframe]{geometry}
\usepackage[utf8]{inputenc}

\usepackage[most]{tcolorbox}
\tcbuselibrary{breakable}
\newtcbox{example}[1][]{%
  enhanced jigsaw,
  colback=white, 
  colframe=black,
  boxrule=1pt,
  sharpish corners,
  arc=0mm,
  boxsep=0mm,
  left=\dimexpr\textwidth-2pt\relax,   %% 2pt= 2* boxrule width (1pt)
  right=0mm,
  % width fill,
  height fill,   %% <---- this fills the remaining space
  #1,
}

\begin{document} 
Itemized list
\begin{itemize}
    \item Itemized \example{\null}
\end{itemize}
\end{document}

Best Answer

 left=\dimexpr\linewidth-2pt\relax,   %% 2pt= 2* boxrule width (1pt)

not \textwidth

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