2 canvas { border: solid green;
6 These should be four green hollow boxes with dimensions
600x300,
100x300,
600x100,
100x100.
9 <canvas id=
"canvas"></canvas>
11 <canvas id=
"canvas" width=
"50"></canvas>
13 <canvas id=
"canvas" height=
"50"></canvas>
15 <canvas id=
"canvas" width=
"50" height=
"50"></canvas>