2%  [size = "1.2, 2.3"];
    3%  label = "Graph No.1"];
    4%        labelloc = t, labeljust = r]
    5% fontname = "ArialBd", fontsize = 10, fontcolor = red];
    6% bgcolor = "#99FFCC"];
    7%     graph [size = "2.3, 1.2", rankdir = LR];
    8%     fixedsize = true, width = 1.7, height = 0.8];
    9%     beta [shape = box];
   10%         3 :   beta [style = dashed]; // ノード beta の線のスタイルを指定する
   11% 	1 : digraph sample {
   12%     2 :   graph [size = "1.2, 2.3"];
   13%     3 :   alpha [peripheries = 2]; // alpha は二重の線
   14
   15				%     4 :   gamma [peripheries = 3]; // gamma は三重の線
   16%     1 : digraph sample {
   17%     2 :   graph [size = "1.2, 2.3"];
   18%     3 :   beta [shape = box, style = filled, color = "#336666", fillcolor = "#CC9999"];
   19%     2 :   alpha [shape = box, label = "This is 1st node."];
   20%     3 :   beta  [shape = box, label = "This is 2nd\nnode."];
   21%     4 :   gamma [shape = box, label = "This is 3rd\lnode.\l"];
   22%     5 :   delta [shape = box, label = "This is 4th\rnode.\r"];
   23%      1 : digraph sample {
   24%     2 :   node [shape = box, style = filled,
   25%     3 :         color = "#336666", fillcolor = "#CC9999",
   26%     4 :         fontname = "Helvetica", fontsize = 10, fontcolor = blue];
   27%       1 : digraph sample {
   28%     2 :   graph [size = "1.5, 2.5"];
   29%     3 :   alpha -> beta;
   30%     4 :   alpha -> gamma [label = "label1", fontcolor = red]; // フォントの指定も可能
   31
   32%     2 :   graph [ranksep = 1.5, nodesep = 1.0];
   33%     2 :   graph [size = "3, 3"];
   34%    11 :   {rank = same; Level_1; a}
   35%    12 :   {rank = same; Level_2; c; b; d}
   36%    13 :   {rank = same; Level_3; e; f}
   37%        2 :   graph [size = "2.0, 3.5", concentrate = true];