Hi, I'm having big trouble centering both a header and the paragraph following it. I looked through all the html guides and wikihow and other websites, can't find a solution.

Here's my code:
<*h3 style="text-align:center">Requirements:<*/h3><*p style="text-align:center">Clean
Gen 1-5
Combo or Combo Factor base (Wiki Page)<*/p>

Requirements:

Clean
Gen 1-5
Combo or Combo Factor base (Wiki Page)

In preview, everything is centered perfectly, but when I post, it changes the header to left align.