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line 9: attribute `TOPMARGIN' for <body> is extended markup (use "-x <extension>" to allow this).
I've cleared everything else up, but this markup problme remains for it, and everywhere CSS controls certain tags.
My question is, what exactly are they telling me to do? ( "-x <extension>")
wha huh?
topmargin is not a valid attribute in html and will not validate.
You should use the w3c validator to see if it follows the w3c standard.
[validator.w3.org...]
Your validator chokes on XHTML tags like <img />
They are flagged as errors when using the validation checker. To exclude any particular attributes from being checked you use the -x command. By excluding them from the check, you remove the error message from the list. Using browser specific code means that your site will display differently in various browsers. However, all browsers just ignore code that they do not understand, so it is possible to have various work-arounds in place so that each browser sees code that produces the same results as each other.