Remember last chosen browser/OS.
Better CSS.

git-svn-id: https://plugins.svn.wordpress.org/browsertest/trunk@845218 b8457f37-d9ea-0310-8a92-e5e31aec5664
Remember last chosen browser/OS.
Better CSS.

git-svn-id: https://plugins.svn.wordpress.org/browsertest/trunk@845219 b8457f37-d9ea-0310-8a92-e5e31aec5664