We need a white background on tooltip.
We need a white background on tooltip.

bmarkons/ruby-bench-web,klgilbert/ruby-bench-web,treble37/ruby-bench-web,bmarkons/ruby-bench-web,klgilbert/ruby-bench-web,treble37/ruby-bench-web,ruby-bench/ruby-bench-web,klgilbert/ruby-bench-web,ruby-bench/ruby-bench-web,treble37/ruby-bench-web,ruby-bench/ruby-bench-web,bmarkons/ruby-bench-web