如果mastodon能够像tumblr一样允许用户使用HTML和CSS更改个人页面外观就好了，这会让它变得更自由和个性化，我非常希望能够实现。

==========================
It would be nice if mastodon could allow users to change the appearance of personal pages using HTML and CSS like tumblr, which would make it more free and personal, which I would very much like to achieve.