[change] merged into post.html
[change] merged into post.html
Revert "追記"

This reverts commit 7c225e5c95af913b6563049a72cd85625a02e4c5.
Revert "Revert "追記""

This reverts commit 722bc4d1c89fae9290e036ca16b454110aaff7e5.
[change] footer layout