THead displays a head element on a page. It displays the content
enclosed in its body and the page title set by the Title property.
will also be displayed in the head.
THead also manages and displays meta tags through its MetaTags
property. You can add a meta object to the collection in code dynamically,
or add it in template using the following syntax
<com:TMetaTag HttpEquiv="Pragma" Content="no-cache" />
<com:TMetaTag Name="keywords" Content="Prado" />
Note, TPage has a property Head that refers to
the THead control currently on the page. A page can have at most one THead
control. Although not required, it is recommended to place a THead on your page.
theme will not be rendered.