Class diagrams: change the alignment to left for items appearing at each level of the diagram (parent to child)

[Nazarah]

Issue

A visitor to the site needs to do horizontal scrolling in order to see the beginning (i.e. parent nodes) of any class diagram. This case is evident specifically when a lower level of hierarchy has a lot of children from the previous parent node.
This is also applicable for properties diagrams.

Proposed solutions

If diagrams are drawn such that all nodes at any level of the hierarchy tree appears with left alignment, it would be easier for visitors to understand the parent-child relationship within the diagram at the very beginning.