Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Attribute “googlecsekey” not allowed on element “a” at this point.
Attribute “xlink” not allowed on element “svg” at this point.
Attribute “space” not allowed on element “svg” at this point.
Text not allowed in element “svg” in this context.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
Attribute “alt” not allowed on element “a” at this point.
Duplicate ID “slide6”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate ID “slide1”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
The “center” element is obsolete. Use CSS instead.
Warnings:
The “navigation” role is unnecessary for element “nav”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “main” role is unnecessary for element “main”.
The first occurrence of ID “slide6” was here.
The first occurrence of ID “slide1” was here.
The “contentinfo” role is unnecessary for element “footer”.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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