Multiple <html><body> </html></body> in same file
An HTML document can only have one html
tag and one body
tag. If you just put several HTML document together, it will be an invalid document, and the browsers may have problems displaying it.
You could remove the duplicate tags, but it might not be that simple. The document can also have only one head
tag, so you would have to combine the contents from the head tags from the separate pages. If the pages contains style sheets that conflict, it will be harder, then you have to rewrite the style sheets and it's usage in the pages so that they no longer conflict. The same goes for Javascript; if you have scripts with conflicting names, you have to rewrite them so that they no longer conflict.
There may be content in the pages that conflict also. An id
may only be defined once in a page, so if the pages uses the same identifiers, you have to change them, and their usage in style sheets and scripts.
If you make sure that there are not such conflicts, you should be able to combine the pages.
If you have documents where you only have control over the body content, you can circumvent this by adding starting and ending tags for comments, so that the ending of one file and start of the next file are ignored. That way you can keep the start of the first file, the content from each file, and the ending of the last file:
<html>
<body>
content...
<!--
</body>
</html>
<html>
<body>
-->
content...
<!--
</body>
</html>
<html>
<body>
-->
content...
</body>
</html>
(Note that this will only use the head
section from the first page, the others will be ignored.)
There is no way to correct that without removing the extra <html>
tags.
Having multiple <html>
tags (or <body>
tags) means that your document is not valid HTML, and all the rules on displaying it go out the window. A browser can try it's best, but there's really no way of knowing how it's going to look.
You should not use multiple <html>
tags in a single file.
What are you trying to do?
If you're combining multiple HTML files, you should use an XML parser to combine the elements properly. Alternatively, you could make another page with a sequence of IFRAME
s referencing other HTML files.