Errors:
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
Internal encoding declaration “shift_jis” disagrees with the actual encoding of the document (“utf-8”).
Bad value “text/html; charset=SHIFT_JIS” for attribute “content” on element “meta”: “charset=” must be followed by “utf-8”.
The “bgcolor” attribute on the “body” element is obsolete. Use CSS instead.
The “text” attribute on the “body” element is obsolete. Use CSS instead.
The “topmargin” attribute on the “body” element is obsolete. Use CSS instead.
The “leftmargin” attribute on the “body” element is obsolete. Use CSS instead.
The “rightmargin” attribute on the “body” element is obsolete. Use CSS instead.
The “center” element is obsolete. Use CSS instead.
Attribute “height” not allowed on element “table” at this point.
The “cellpadding” attribute on the “table” element is obsolete.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The “cellspacing” attribute on the “table” element is obsolete.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The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
The “valign” attribute on the “tr” element is obsolete. Use CSS instead.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
CSS: “margin-top”: only “0” can be a “unit”. You must put a unit after your number.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
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