Errors:
The “itemtype” attribute must not be specified on elements that do not have an “itemscope” attribute specified.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “popupbtn-frame”.
The “big” element is obsolete. Use CSS instead.
The element “button” must not appear as a descendant of the “a” element.
Duplicate attribute “class”.
Any “input” descendant of a “label” element with a “for” attribute must have an ID value that matches that “for” attribute.
The “strike” element is obsolete. Use CSS instead.
Duplicate ID “divsize”.
No space between attributes.
Duplicate ID “start_order_btn”.
Duplicate ID “canvas-size”.
Duplicate ID “canvas-wrap”.
No “p” element in scope but a “p” end tag seen.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
The first occurrence of ID “popupbtn-frame” was here.
The first occurrence of ID “divsize” was here.
The first occurrence of ID “start_order_btn” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “canvas-size” was here.
The first occurrence of ID “canvas-wrap” was here.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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