Twenty Eleven, minor cleanup: remove extra spaces in CSS file and crush a few more kilobytes from a PNG file.

git-svn-id: https://core.svn.wordpress.org/trunk@24144 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Ten: fix style element ID attribute value, see #24033.

git-svn-id: https://core.svn.wordpress.org/trunk@24145 1a063a9b-81f0-0310-95a4-ce76da25c4cd