How I solved the problem. Как я решил проблему.
Template postbit_legacy. Шаблон postbit_legacy.
It was like this (было так):
HTML Code:
<blockquote class="signature restore"><div class="signaturecontainer">{vb:raw post.signature}</div></blockquote>
To do so (сделал так):
HTML Code:
<blockquote class="signature restore"><div class="signaturecontainer"><span style="font-size:12px">{vb:raw post.signature}</span></div></blockquote>
Font decreased. HTML-code is valid. Шрифт уменьшился. HTML-код валидный.