Tags can have attributes, in that case, attributes are in the opening tag in
form of a key/value separated with equal signs. Attribute values should not be quoted.
+If you want to insert a literal greater-than sign or a backslash into the text,
+you must escape it by preceding it with a backslash.
+
These are the technically basic tags but see below for usual tags. Base tags are:
`<style color=... font=... size=...>...</style>`