Ajuda problema sem solução

Escrito por spaiverd en Posicionamiento Web | 0 comentarios
ayuda
No tengo idea que puedo hacer o como lo debo arreglar este tipo de fallos:
Line 440, Column 629: The allowtransparency attribute on the iframe element is obsolete. Use CSS instead.
…olling=”no” name=”jetpack_remote_comment” id=”jetpack_remote_comment”>
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Line 370, Column 117: Bad value http:// for attribute href on element a: A component that is required by the scheme is missing.
…sp;
Syntax of IRI reference:
Any URL. For example: /hello, #canvas, or Example Domain. Characters should be represented in NFC and spaces should be escaped as %20.
Line 440, Column 629: The allowtransparency attribute on the iframe element is obsolete. Use CSS instead.
…olling=”no” name=”jetpack_remote_comment” id=”jetpack_remote_comment”>
✉
Line 440, Column 629: The frameborder attribute on the iframe element is obsolete. Use CSS instead.
…olling=”no” name=”jetpack_remote_comment” id=”jetpack_remote_comment”>
✉
Line 440, Column 629: The scrolling attribute on the iframe element is obsolete. Use CSS instead.
…olling=”no” name=”jetpack_remote_comment” id=”jetpack_remote_comment”>
✉
Line 495, Column 204: An img element must have an alt attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
…s/slides/bannercesped2.jpg” class=”alignnone” width=”150″ height=”320″ />
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Line 557, Column 183: The scrolling attribute on the iframe element is obsolete. Use CSS instead.
…ling=’no’ id=’likes-master’ name=’likes-master’ style=’display:none;’>
✉

no son errores graves ni nada... son solo cosas de CSS que W3C usa para validar.... nada de que preocuparse...
The W3C Markup Validation Service

gracias genio