title: Bokeh remove vertical spaces between div widgets
body: <p>I'm trying to use div widgets in bokeh as a side panel to my data. I want them to stack above one another with no white space in between.</p>
  
  <p>Here is my simplified code:</p>
  
  <pre><code>from bokeh.models.widgets import Div
  from bokeh.layouts import column
  from bokeh.io import show
  
  benchmarktitle= Div(text="Benchmark", width=150, height=50,
  style={'background-color':'#072A49', 'color':'white','font-family': 'Helvetica, arial, sans-serif', 'border':'0'})
  
  selectedtitle= Div(text="Selected",  width=150, height=50, 
  style={'background-color':'#072A49', 'color':'white','font-family': 'Helvetica, arial, sans-serif', 'border':'0'})
  
  layout= column(children = [benchmarktitle,selectedtitle], sizing_mode="scale_height")
  
  show (layout)
  </code></pre>
  
  <p><strong>RESULT:</strong></p>
  
  <p><a href="https://i.stack.imgur.com/Qr3MQ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Qr3MQ.png" alt="enter image description here"></a></p>
  
  <p>How can I eliminate the white space in between the two divs? I've tried adjusting the heights and setting line-height to zero but neither worked. I've tried different layouts like gridplot and row, and all the different sizing modes but the white space persists. </p>
  
  <p>I'm a bit of a novice at this so any help or guidance would be much appreciated.</p>