Question: Can some body explain why the TD element is taking width when its not allowed in strict mode.This is the code [Was not able to put code because of HTML rendering problem.]

```
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

<html>

<head>
 <meta http-equiv="Content-Type" content="text/xml+xhtml; charset=utf-8"/>
</head>
<body>
<table>
<tr>
    <td width="200">First</td>
    <td>Second</td>
</tr>
</table>

</body>
</html>

```

Answer: 
Even though it's deprecated per the spec the browser will still apply it because you specified it. It has to be lenient toward older docs which may otherwise have broken layouts if it didn't apply the attribute(s).
Your doctype (HTML 4.01) doesn't match your content type.

The content type should read `application/xhtml+xml` instead of `text/xml+xhtml`, *and* your web server should also serve your page as such in order for standards-compliant browsers to treat it strictly (that is, fail to render your document if it's invalid). Also, as Alohci says, you need to include an XML namespace for the XHTML spec.

```
<html xmlns="http://www.w3.org/1999/xhtml">

```

Otherwise, browsers will just render like you tell them to, ignoring standards, although if you try to validate this it'll still fail.