Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The first occurrence of ID “demo” was here.
Empty heading.
The “type” attribute for the “style” element is not needed and should be omitted.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
Errors:
Element “meta” is missing one or more of the following attributes: “content”, “property”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “href” not allowed on element “div” at this point.
Stray end tag “a”.
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate ID “demo”.
Attribute “menu-description” not allowed on element “div” at this point.
CSS: “bottom”: only “0” can be a “unit”. You must put a unit after your number.
CSS: Parse Error.
Element “dslyiv” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The element “button” must not appear as a descendant of the “a” element.
CSS: “text-center”: Parse Error.
End tag “div” seen, but there were open elements.
Unclosed element “dslyiv”.
CSS: “pointer-event”: Property “pointer-event” doesn't exist.
CSS: “tex-decoration”: Property “tex-decoration” doesn't exist.
End tag “h5” seen, but there were open elements.
Element “img” is missing required attribute “src”.
CSS: “background-repeat-y”: Property “background-repeat-y” doesn't exist.
Element “sly” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Indonesia ID