Thread:Spike144/@comment-5157850-20120708194808/@comment-4674838-20120713021554

I would recommend using instead of

is valid XHTML (works in HTML, but also in XML where all tags must be closed), whereas  only works in HTML.

Also, I believe that more parsers will be able to parse closed tags slightly faster. Basically, I'm advising that I would consider it best practice to always close your HTML tags.