LaTeX Templates New Box 2

\documentclass[openany]{book} 
\usepackage[many]{tcolorbox} 
\newtcolorbox{mynote}{% 
enhanced, left=1cm, breakable, 
colback=yellow!20, colbacktitle=yellow!20, colframe=yellow!20, 
sharp corners, 
width=90mm, 
fonttitle=\Large\bfseries, 
title=\textcolor{green!70!black}{Note}, 
overlay={
\fill[green!70!black](frame.north west)--++(-90:4mm)--++(-45:3mm)--++(45:3mm)|-cycle;
}, drop fuzzy shadow=gray!50 } 
\usepackage{lipsum}
\begin{document} 
\begin{mynote} 
\lipsum[1]
\end{mynote} 
\end{document}

Nguồn : Latex templates pro