cursor:, which I omitted from the previous commit.
cursor:, which I omitted from the previous commit.

svn path=/trunk/libcss/; revision=6292

zhuyadong/libcss,prepare/netsurf_libcss,servo/libcss,zhuyadong/libcss,prepare/netsurf_libcss,prepare/netsurf_libcss,zhuyadong/libcss,servo/libcss,servo/libcss