Minor css issue fixed

git-svn-id: https://plugins.svn.wordpress.org/simple-post-carousel/trunk@1034734 b8457f37-d9ea-0310-8a92-e5e31aec5664
minor css issue fix

git-svn-id: https://plugins.svn.wordpress.org/simple-post-carousel/trunk@1034736 b8457f37-d9ea-0310-8a92-e5e31aec5664