<meta/> Tag Attributes

Attributes of the <meta/> tag
global attributes In addition to the personal attributes of the <meta/> tag below, any of the common HTML attributes can also be coded.
The itemprop attribute is required when the <meta/> tag is used where flow content or phrasing content is expected.
charset
content
for <meta http-equiv="...">
the value of the HTTP header directive
for <meta name="...">
the value of the document metadata
for <meta itemprop="...">
the value of the microdata property
http-equiv http-equiv="content-language"
http-equiv="content-type"
http-equiv="default-style"
http-equiv="refresh"
name name="application-name"
name="author"
name="classification"
name="copyright"
name="description"
name="formatter"
name="generator"
name="google"
name="googlebot"
name="handheldfriendly"
name="keywords"
name="rating"
name="verify"
name="viewport" - see Using <meta name="viewport"/> to Control Zoom in Mobile Browsers