Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Duplicate ID “header_section”.
Bad value “/site.php?page=topic§ion=Deep Space” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “/site.php?page=topic§ion=Solar System” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
Duplicate ID “title_space”.
Duplicate ID “author_space”.
Duplicate ID “image_space”.
Duplicate ID “clear”.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “width” attribute on the “td” element is obsolete. Use CSS instead.
Duplicate ID “black_back”.
Duplicate ID “adspace”.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
The “valign” attribute on the “td” element is obsolete. Use CSS instead.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “height” attribute on the “td” element is obsolete. Use CSS instead.
Table cell spans past the end of its row group established by a “tbody” element; clipped to the end of the row group.
Duplicate ID “bottom_big_space”.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “twin"” not allowed on element “img” at this point.
Attribute “exoplanets” not allowed on element “img” at this point.
Attribute “formed” not allowed on element “img” at this point.
Attribute “through” not allowed on element “img” at this point.
Attribute “very” not allowed on element “img” at this point.
Attribute “different” not allowed on element “img” at this point.
Attribute “processes"” not allowed on element “img” at this point.
Duplicate ID “footer”.
Duplicate ID “footer_spread”.
Warnings:
The first occurrence of ID “header_section” was here.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “title_space” was here.
The first occurrence of ID “author_space” was here.
The first occurrence of ID “image_space” was here.
The first occurrence of ID “clear” was here.
The first occurrence of ID “black_back” was here.
The first occurrence of ID “adspace” was here.
The first occurrence of ID “bottom_big_space” was here.
Attribute “twin"” is not serializable as XML 1.0.
Attribute “processes"” is not serializable as XML 1.0.
The first occurrence of ID “footer” was here.
The first occurrence of ID “footer_spread” was here.
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