The bottom margin of the Rdlc Sub Report does not match the row bottom margin of the parent report

Question

I'm working with asp.net mvc and using rdlc reporthing technology to generate reports. But I'm stuck in a bind. This is the output of my rdlc report with sub-reports.

Where My Report Design are

and

But I would want a report similar to this one

in which the sub-report row size grows in lockstep with the parent row size.