Having had an SEO consultant look at my Office 365 website [masked by August Sun MSFT Support], they identified that each page has many HTML errors, see here for an example http://validator.w3.org/check?uri=http%3A%2F%2FWww.protostar-uk.com%2FPages%2Fdefault.aspx
Many of the errors refer to html code being present for features that the office 365 platform does not support.
for intance
Line 47, Column 24: there is no attribute "cellSpacing"
<TABLE cellSpacing="0" cellPadding="0" width="780" border="0" class="MSC_Si…
You have used the attribute named above in your document, but the document type you are using does not support that attribute for this element
As I only use the WYSIWYG tools and templates to create my site, I have had no direct control over the HTML and assumed that any tool bar action or default formating etc, would be coded correctly. ie, im only doing what office 365 tells me to do
Two questions, does it even matter that there appear to be so many errors, as the site runs fine and looks ok?
If they should be corrected, how would this be done?