[VE][73] Error Message Feedback

What shall I di to make this correct?

Best regards
Barbro

      Encoding:  iso-8859-1 
      Doctype:  HTML 4.01 Transitional 
      Errors:  7 

This page is not Valid HTML 4.01 Transitional!
Below are the results of attempting to parse this document with an SGML parser. 

  1.. Line 5, column 55: document type does not allow element "LINK" here

  <link rel="stylesheet" href="basic.css" type="text/css">



  2.. Line 8, column 43: document type does not allow element "LINK" here

  type="text/css" rel="alternate stylesheet" />



  3.. Line 10, column 50: document type does not allow element "LINK" here

  href="large.css" type="text/css" rel="stylesheet" />

   

  4.. Line 11, column 58: document type does not allow element "LINK" here

  <link rel="stylesheet" href="onLoad1.css" type="text/css" />

   

  5.. Line 177, column 44: there is no attribute "HEIGHT"

  <div id="header3"><table width="80%" height="1"></table></div> 



  6.. Line 177, column 55: end tag for "TABLE" which is not finished

  <div id="header3"><table width="80%" height="1"></table></div>