Btukfyl

Here I am using tcolorbox package, I want to set the bullet/dot need to expand based upon the box spanning as per requirement. Here I attached the screen shot and highlight the area in red color which I required. If anyone please help in this case.

MWE:

documentclass[12pt]{article}



RequirePackage[most]{tcolorbox}



newtcolorbox[auto counter]{Boxone}[1]{%

enhanced,breakable,

before title={stepcounter{BoxOnecnt}},

toggle left and right,sharp corners,

boxrule=0mm,top=0mm,bottom=0mm,left=0mm,right=0mm,

colframe=white,

colback=black!30,

fonttitle=bfseries,

left=0pt,%%21.5

leftrule=21.5pt,

rightrule=0pt,

width=hsize,

overlay unbroken and first ={%

node[rotate=90,

minimum width=21.5pt,

anchor=south,

font=fontsize{11.5bp}{11.5bp}sffamilybfseries,

yshift=2.5pt,

white]

at (frame.east) {WORKED E.G.~1};

},

}





begin{document}





begin{Boxone}%[WORKED E.G. 1.1]

subsection{Addition}

A patient asks you how many medicines they need to swallow to take all their morning medicines. They have the following medicines to take:

begin{itemize}

item 500 mg paracetamol (2 capsules)

item 40 mg frusemide (1 tablet)

item 62.5 mcg digoxin (2 tablets)

end{itemize}

A patient asks you how many medicines they need to swallow to take all their morning medicines. They have the following medicines to take:

end{Boxone}



end{document}

Something of this kind?

documentclass[12pt]{article}



RequirePackage[most]{tcolorbox}

usetikzlibrary{patterns}

newtcolorbox[auto counter]{Boxone}[1]{%

enhanced,breakable,

before title={stepcounter{BoxOnecnt}},

toggle left and right,sharp corners,

boxrule=0mm,top=0mm,bottom=0mm,left=0mm,right=0mm,

colframe=white,

colback=black!30,

fonttitle=bfseries,

left=0pt,%%21.5

leftrule=21.5pt,

rightrule=0pt,

width=hsize,

overlay unbroken and first ={%

node[rotate=90,

minimum width=21.5pt,

anchor=south,

font=fontsize{11.5bp}{11.5bp}sffamilybfseries,

yshift=2.5pt,

white]

at (frame.east) {WORKED E.G.~1};

fill[overlay,pattern=dots] ([xshift=-2.5cm]frame.north west) rectangle

([xshift=-0.5cm]frame.south west);

fill[overlay,green!60!black] ([xshift=-0.35cm]frame.north west) rectangle

([xshift=0.45cm]frame.south west);

},

}





begin{document}





begin{Boxone}%[WORKED E.G. 1.1]

subsection{Addition}

A patient asks you how many medicines they need to swallow to take all their morning medicines. They have the following medicines to take:

begin{itemize}

item 500 mg paracetamol (2 capsules)

item 40 mg frusemide (1 tablet)

item 62.5 mcg digoxin (2 tablets)

end{itemize}

A patient asks you how many medicines they need to swallow to take all their morning medicines. They have the following medicines to take:

end{Boxone}



end{document}