Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bad value “_empty” for attribute “target” on element “a”: Reserved keyword “empty” used.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
End tag “strong” violates nesting rules.
No “a” element in scope but a “a” end tag seen.
Duplicate ID “first-page-content-right”.
Duplicate ID “first-page-image-box”.
Duplicate ID “first-page-image”.
Bad value “analysis2?col=comet_id&id=1690&start_date=2017/09/01 00:00&end_date=2018/10/31 00:00&plot_type=0&perihelion=1&fit_curve=1&obs_type=3” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Duplicate ID “first-page-image-description”.
Duplicate ID “first-page-bottom”.
Duplicate ID “first-page-content”.
Duplicate ID “first-page-obs-list”.
Bad value “images/news/t_C2018 N2 (ASASSN)_Q62_July_15_2018.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
A slash was not immediately followed by “>”.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Duplicate attribute “"”.
Attribute “"” not allowed on element “a” at this point.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “first-page-content-right” was here.
The first occurrence of ID “first-page-image-box” was here.
The first occurrence of ID “first-page-image” was here.
The first occurrence of ID “first-page-image-description” was here.
The first occurrence of ID “first-page-bottom” was here.
The first occurrence of ID “first-page-content” was here.
The first occurrence of ID “first-page-obs-list” was here.
Attribute “href” without an explicit value seen. The attribute may be dropped by IE7.
Attribute “"” is not serializable as XML 1.0.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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