http://www.perlmonks.org?node_id=11121746

<center> elements are being used in the divs with the class reputation. <center> has been rendered obsolete, deprecated in HTML 4 and XHTML 1.

Obsolete

This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

- <center>: The Centered Text element (obsolete) on MDN web docs

Please remove the <center> elements in favor of using the CSS property text-align: center?

Edit: It is easier to restyle text-align: then to style the <center> tag.

My OS is Debian 10 (Buster); my perl versions are 5.28.1 local and 5.16.3 or 5.30.0 on web host depending on the shebang.

No matter how hysterical I get, my problems are not time sensitive. So, relax, have a cookie, and a very nice day!
Lady Aleena