This attribute points to a specific namespace. The tag definitions within that namespace are then applied to the rest of the document that this attribute modifies.
Some .lit conversion tools generate a warning if any unrecognized tag is present in a document of MIME type text/html
or text/x-oeb1-document
unless that tag uses a namespace prefix. Others will simply drop the unrecognized tag without a warning. Consult your tools vendor for details.
Associated Tags
html
Sample Code
<html xmlns:x="http://www.w3.org/TR/REC-html40">
....
<style>
x\:msr {color:lime; font-size:11pt; font-weight:bold}
</style>
<body>
<x:msr>This is a XML element</x:msr>
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