ho provato a validare la mia pagina e ho trovato degli errori che non ho capito come correggere.
Gli errori sono:
Line 13, column 26: there is no attribute "HEIGHT"

<table width="680" height="758" border="0" align="center" cellpadding="0" cellsp

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. This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Transitional" document type to get the "target" attribute), or by using vendor proprietary extensions such as "marginheight" (this is usually fixed by using CSS to achieve the desired effect instead).

This error may also result if the element itself is not supported in the document type you are using, as an undefined element will have no supported attributes; in this case, see the element-undefined error message for further information.

How to fix: check the spelling and case of the element and attribute, (Remember XHTML is all lower-case) and/or check that they are both allowed in the chosen document type, and/or use CSS instead of this attribute.

✉

Line 88, column 20: there is no attribute "DIRECTION"

<marquee direction="right" scrollamount="2" width="620">

✉

Line 88, column 41: there is no attribute "SCROLLAMOUNT"

<marquee direction="right" scrollamount="2" width="620">

✉

Line 88, column 51: there is no attribute "WIDTH"

<marquee direction="right" scrollamount="2" width="620">

✉

Line 88, column 56: element "MARQUEE" undefined

<marquee direction="right" scrollamount="2" width="620">

You have used the element named above in your document, but the document type you are using does not define an element of that name. This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Frameset" document type to get the "<frameset>" element), or by using vendor proprietary extensions such as "<spacer>" or "<marquee>" (this is usually fixed by using CSS to achieve the desired effect instead).

come cavolo correggo??