Insightdatascience.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “header_bt_3”.
Duplicate ID “hslide_inner_container”.
Element “img” is missing required attribute “src”.
Duplicate ID “footer_bt_3”.
Duplicate ID “footer_bt_7”.
Warnings:
The first occurrence of ID “header_bt_3” was here.
The first occurrence of ID “hslide_inner_container” was here.
The first occurrence of ID “footer_bt_3” was here.
The first occurrence of ID “footer_bt_7” was here.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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