old_contents: from bokeh.plotting import figure, output_file, show
  
  output_file("dimensions.html")
  
  # create a new plot with a title
  p = figure(plot_width=700)
  p.plot_height = 300
  
  p.circle([1, 2, 3, 4, 5], [2, 5, 8, 2, 7], size=10)
  
  show(p)
  
new_contents: from bokeh.plotting import figure, output_file, show
  
  output_file("dimensions.html")
  
  # create a new plot with specific dimensions
  p = figure(plot_width=700)
  p.plot_height = 300
  
  p.circle([1, 2, 3, 4, 5], [2, 5, 8, 2, 7], size=10)
  
  show(p)
  
subject: correct comment in example (#5378)