Cannot adjust tree cut for hierarchical clustering

[kieran-mace]

The dotted line used to cut the row dendrogram tree literally touch the side of the browser, it is therefore impossible to use the mouse to click and drag it

[aakashsur]

I've experience the same issue, I managed to manipulate the div in browser to add a margin which lets you access the dendrogram cutoff. Should be a simple fix though.

[joshua-gould]

Added margin