block @(0,0) 1000x40
  block @(0,0) 1000x40 <html>
    block @(0,0) 1000x40 <body>
      block @(0,0) 600x40 <div>
        block @(0,0) 100x40 <div>
        block @(100,0) 167x40 <div>
        block @(267,0) 333x40 <div>
