Some DTDs and schemas allow for metadata above and beyond that which can be specified by this DTD. This element is used to capture a metadata element that has not been defined explicitly in the models for this DTD, so that the intellectual content will not be lost.
The <custom-meta> element allows for an infinite variety of name/value pairs, with few constraints on the length or content of the value. This element will probably be used for special cases, product-specific material, or other unusual metadata, for example, the journal-history information preserved in at least one publisher’s DTD.
<!ELEMENT custom-meta %custom-meta-model; >
The following, in order:
... <front> <journal-meta> <journal-title>Biodiversity & Mutation</journal-title> ... <custom-meta-wrap> <custom-meta> <meta-name>journalsubtitle</meta-name> <meta-value>for biotechnology professionals</meta-value> </custom-meta> </custom-meta-wrap> </journal-meta> <article-meta>...</article-meta> </front> ...