Big gap between browsers reports in Combined report.

[JHarman]

Big gap between browsers reports in Combined report. See screenshot for better clearness.

Steps to reproduce:
Prerequisites: Set up Shishito framework

1. Clone Shishito Sample project
2. Setup dependencies to Shishito framework
3. Execute Sample project
4. Open created CombineReport.html from results folder within the project

Expected result: Result table for each browser are one below another without any big gap between.
Actual result: Result table for each browser are one below another but with big gap in between.