# using chapter style in latex

I want to be like the output below. Please heip me! Thank you very much!

• Please tell us which document class you're using. In addition, please be more specific about the exact details you require. E.g., should the words in the argument of \chapter be rendered in uppercase, small-caps, bold, etc? How important is the drop shadow around the rectangle with rounded edges? What about the color to be used? What font sizes should be used? Please be as specific as you can be. – Mico Nov 19 '16 at 8:39

Use titlesec and tcolorbox. Look at this solution: chapter style with tcolorbox? It uses a different box layout, but you can adapt the tcolorbox options to get your desired layout.

Here is an initial adaptation of that solution for numbered chapters: You will need to tune it, by adapting the colors, dimensions and things like that.

\titleformat{\chapter}[display]
{\normalfont\huge\bfseries}
{}
{20pt}
{%
\begin{tcolorbox}[
enhanced,
rounded corners,
colback=white,
boxrule=0mm,
arc=3mm,
leftrule=0pt,
rightrule=0pt,
fontupper=\color{blueish}\sffamily\bfseries\huge,
width=\textwidth-3.2mm,  % account for shadow width.
top=0.6cm,
bottom=0.6cm,
overlay={
\node[
fill=blueish,
line width=0cm,
inner sep=0pt,
text width=13mm,
minimum height=16mm,
align=center,
anchor=south east,
xshift=2.2mm, yshift=9mm,
font=\color{white}\sffamily\bfseries\fontsize{30}{36}\selectfont
]
(chapname) at (frame.north east) {\thechapter};
\node[color=gray,font=\large,anchor=base east,inner sep=1mm] at (chapname.base west)
{\chaptertitlename};
}
]
\MakeUppercase{#1}
\end{tcolorbox}%
}


This gives

• This reads more like a comment than a full answer. At a minimum, you may want to suggest which tcolorbox options will need to be adapted. – Mico Nov 19 '16 at 8:43
• Added some code. Should be adapted by the OP to get all the details right. – Piet van Oostrum Nov 19 '16 at 9:14