What does a / at the end of an HTML tag mean?

[Celtic]

Like in this tag, for example:

[epic_sun]

This slash "/" is used for the closing of an empty tag. Empty tag is a tag which contains no sub-element.

[enversetcontretous]

The / is meant to close some tags, because some tags can be self closeable, like and . But tags like A HREF need to be closed, like so <a href=""></a>.