Added dotted or solid line between stacked subplots with shared x-axis

I want to create a graph similar to the example of stacked subplots with shared x-axis (https://plot.ly/javascript/subplots/#stacked-subplots-with-a-shared-x-axis), except I want to place a horizontal dotted or dashed line between each pair of adjacent graphs. I preferably would want the plots to be adjacent instead of separate. Is there a way to do this? Thanks.

Hi Aewhatley,
I am trying to make a similar figure as yours.

If I understand it correctly, I make the two parts adjacent by setting the domain values. For example, I set the domain of my xaxis1 as “domain”: [0, 0.75] and xaxis2 as “domain”: [0.75, 1] so that the two part get adjacent with each other. I assume the two parts could be separated by a border of by adding a no-value axis, but I’m sorry that I do not really know how to make it.

However, I am quite new in Plotly, so I am not sure whether it is a good way. Hope it could help you…

By the way, I have a question: could you make the borders of the second figure (I mean, the right one) appear? I tried but they kept hidden!..