Errors:
Element “div” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “main”.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “maas"alt” not allowed on element “img” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “ネット&スマートフォン・コマース"alt” not allowed on element “img” at this point.
Attribute “アプリケーション・パフォーマンス"alt” not allowed on element “img” at this point.
Attribute “security” not allowed on element “img” at this point.
Attribute “days” not allowed on element “img” at this point.
Attribute “2018"alt” not allowed on element “img” at this point.
Attribute “03href” not allowed on element “a” at this point.
Bad value “” for attribute “id” on element “img”: An ID must not be the empty string.
Attribute “management” not allowed on element “img” at this point.
Attribute “conference” not allowed on element “img” at this point.
Attribute “2017"alt” not allowed on element “img” at this point.
Attribute “shownet,conf"alt” not allowed on element “img” at this point.
Duplicate attribute “alt”.
Attribute “ロゴ"” not allowed on element “img” at this point.
The “font” element is obsolete. Use CSS instead.
Warnings:
The first occurrence of ID “main” was here.
Attribute “maas"alt” is not serializable as XML 1.0.
Attribute “ネット&スマートフォン・コマース"alt” is not serializable as XML 1.0.
Attribute “アプリケーション・パフォーマンス"alt” is not serializable as XML 1.0.
Attribute “2018"alt” is not serializable as XML 1.0.
Attribute “03href” is not serializable as XML 1.0.
Attribute “2017"alt” is not serializable as XML 1.0.
Attribute “shownet,conf"alt” is not serializable as XML 1.0.
Attribute “ロゴ"” is not serializable as XML 1.0.
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