%%%%%%%%%%%%
%
% @file: osi_layers_stdl.tex
% @author: Camille Monière
% @year: 2022
% @license: CC-BY 4.0
%
% This file is licensed under the Creative Commons Attribution 4.0 International License. 
% To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ or send a letter to Creative Commons, 
% PO Box 1866, Mountain View, CA 94042, USA.
%
%%%%%%%%%%%%
\documentclass[tikz,border=0cm,dvipsnames,x11names,rgb]{standalone}

\input{../stdl_preamble.tex}

\begin{document}

\pgfdeclarelayer{background}
\pgfsetlayers{background, main}
\begin{tikzpicture}[
  every node/.style={font=\huge}
]

  \node [
    draw,
    fill=blue!00,
    minimum width = 5cm,
    minimum height = 1cm] (lv1) at (0,0) {Physical};
  \node [
    draw,
    fill=blue!05,
    minimum width = 5cm,
    minimum height = 1cm,
    above = 2mm of lv1
  ] (lv2) {Data Link};
  \node [
    draw,
    fill=blue!10,
    minimum width = 5cm,
    minimum height = 1cm,
    above = 2mm of lv2
  ] (lv3) {Network};
  \node [
    draw,
    fill=blue!15,
    minimum width = 5cm,
    minimum height = 1cm,
    above = 2mm of lv3
  ] (lv4) {Transport};
  \node [
    draw,
    fill=blue!20,
    minimum width = 5cm,
    minimum height = 1cm,
    above = 2mm of lv4
  ] (lv5) {Session};
  \node [
    draw,
    fill=blue!25,
    minimum width = 5cm,
    minimum height = 1cm,
    above = 2mm of lv5
  ] (lv6) {Presentation};
  \node [
    draw,
    fill=blue!30,
    minimum width = 5cm,
    minimum height = 1cm,
    above = 2mm of lv6
  ] (lv7) {Application};

\foreach \i in {1,2,3,4,5,6,7} {
  \node [right = .1mm of lv\i] (lv\i_lb) {Layer \i}; 
}

\node [draw=red, ultra thick, inner sep=1mm, fit = (lv1) (lv1_lb) ] {};

\end{tikzpicture}
\end{document}