Convert HTML Tags to Lower-case for XHTML Compliance (WebProNews)
Convert HTML Tags to Lower-case for XHTML Compliance (WebProNews)
The XHTML definition demands all tags to be lower-cased. Your page will not validate otherwise and will therefore not be valid XHTML. If you write all your XHTML by yourself, it shouldn’t be an issue. You simply write all tags in lower-case. Now, imaging situations where you’re not in control over the code being written. One situation is when you let visitors/users of the website