body
{ text-align:       center;
  padding:          10px;
  background-color: #AAA;
}

#d_page
{ margin: 20px auto;
}

#d_canvas
{ border-color: #777; 
  border-width: 2px; 
  border-style: solid;
  
  background-color: #CCC;
}

#d_canvas > svg
{ display: block;
	margin:  -20px auto;
}