segment: space is not allowed.
Bad value Content-Style-Type for attribute http-equiv on element meta.
The align attribute on the div element is obsolete
The align attribute on the h1 element is obsolete. Use CSS instead.
The font element is obsolete. Use CSS instead.
The align attribute on the p element is obsolete. Use CSS instead.
The border attribute is obsolete. Consider specifying img { border: 0; } in CSS instead.
Legacy encoding shift_jis used. Documents should use UTF-8.
Consider avoiding viewport values that prevent users from resizing documents.
The character encoding was not declared.
Start tag seen without seeing a doctype first. Expected e.g. <!DOCTYPE html>.
Quote " in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute [名前] is not serializable as XML 1.0.
Bad value [値] for attribute [名前] on element meta: Must not be empty.
Attribute [名前] not allowed on element meta at this point.
A slash was not immediately followed by >
Saw < when expecting an attribute name. Probable cause: Missing > immediately before.
Bad character [文字] after <. Probable cause: Unescaped <. Try escaping it as <.
The width attribute on the table element is obsolete. Use CSS instead.
The border attribute on the table element is obsolete. Use CSS instead.
The bgcolor attribute on the td element is obsolete. Use CSS instead.
Element style not allowed as child of element body in this context.
meta element between head and body.
Element head is missing a required instance of child element title.
Start tag head seen but an element of the same type was already open.
An img element must have an alt attribute, except under certain conditions.
Misplaced non-space characters inside a table.
End tag p implied, but there were open elements.
Element p not allowed as child of element pre in this context.
The name attribute is obsolete. Consider putting an id attribute on the nearest container instead.