title: How to Make a Dashed Bar Chart Border in Highcharts
body: <p>I have a stacked bar graph with two data attributes. I want to make the second bar looked grayed out with a dashed border. I've tried "dashStyle: 'longdash' but that and anything else i've tried doesn't work.</p>
  
  <p>This is the look i'm going for:
  <img src="https://i.stack.imgur.com/iJ323.png" alt="enter image description here"></p>