Autoprefixer changed the default for cascade from false to true. Our css coding standards do not include the cascade for browser prefixes. Introduced in r30067 see #30141 Built from https://develop.svn.wordpress.org/trunk@30069 git-svn-id: http://core.svn.wordpress.org/trunk@30069 1a063a9b-81f0-0310-95a4-ce76da25c4cd