title: How to change color of <hr> element in XHTML without CSS?
body: <p>W3 Markup Validator shows the following error :</p>
  
  <blockquote>
    <p>Line 10, Column 11: there is no attribute "color"  
    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).</p>
    
    <p>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.<br>
    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. If you received this error
    when using the  element to incorporate flash media in a Web
    page, see the FAQ item on valid flash.</p>
  </blockquote>
  
  <p>How do I correct it?</p>