igorcosta

Para CPF

/^\d{3}\.\d{3}\.\d{3}\-\d{2}$/


Para CNPJ
/^\d{2}\.\d{3}\.\d{3}\/\d{4}\-\d{2}$/

Para ambos ao mesmo tempo

lancejpollard

Copied from http://code.lancepollard.com/complete-list-of-html-meta-tags/

Basic HTML Meta Tags

<meta name="keywords" content="your, tags"/>
<meta name="description" content="150 words"/>
<meta name="subject" content="your website's subject">
<meta name="copyright"content="company name">
<meta name="language" content="ES">