W3c Error

  • I went over to w3c to validate website. it came up with these following errors. What must I do to fix these errors?

    Line 18, Column 47: Attribute xmlns:og not allowed here.
    xmlns:fb=”https://www.facebook.com/2008/fbml” >
    ?

    ? Line 18, Column 47: Attribute with the local name xmlns:og is not serializable as XML 1.0.
    xmlns:fb=”https://www.facebook.com/2008/fbml” >
    ?

    ? Line 18, Column 47: Attribute xmlns:fb not allowed here.
    xmlns:fb=”https://www.facebook.com/2008/fbml” >
    ?

    ? Line 18, Column 47: Attribute with the local name xmlns:fb is not serializable as XML 1.0.
    xmlns:fb=”https://www.facebook.com/2008/fbml” >
    ?

    ? Line 23, Column 79: Bad value X-UA-Compatible for attribute http-equiv on element meta.
    <meta http-equiv=”X-UA-Compatible” content=”IE=9; IE=8; IE=7; IE=EDGE” />
    ?

    ? Line 108, Column 238: Bad value for attribute width on element img: The empty string is not a valid non-negative integer.
    …oads/2014/06/logo_130594_print1.jpg” alt=”Back Home” width=”” height=”” />
    Syntax of non-negative integer:
    One or more digits (0–9). For example: 42 and 0 are valid, but -273 is not.

    ? Line 108, Column 238: Bad value for attribute height on element img: The empty string is not a valid non-negative integer.
    …oads/2014/06/logo_130594_print1.jpg” alt=”Back Home” width=”” height=”” />
    Syntax of non-negative integer:
    One or more digits (0–9). For example: 42 and 0 are valid, but -273 is not.

    ? Line 328, Column 151: Article lacks heading. Consider using h2-h6 elements to add identifying headings to all articles.
    …icle id=”page-7″ class=”post-7 page type-page status-publish hentry row-fluid”>

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