Revert "update _page.css"
Revert "update _page.css"

This reverts commit 9c547e93032ccb999a8e0df28a446effc96061a1.

ZedongPeng/zedongpeng.github.io,ZedongPeng/zedongpeng.github.io,ZedongPeng/zedongpeng.github.io