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HTML for GMT Acronym

when GMT means Greenwich Mean Time

New! Now updated with the inheritance rules for the title attribute in HTML 5

The easiest way to create HTML code indicating that the acronym GMT stands for Greenwich Mean Time is to simply include the acronym in an HTML <a> tag and an abbreviation tag (not an acronym tag):

<a href="http://www.Acronyms.net/terms/g/Greenwich-Mean-Time/" title="Greenwich Mean Time"
onclick="if (confirm('GMT stands for Greenwich Mean Time')) return false;"
>
<abbr>GMT</abbr>
</a>

This is the recommended code for both HTML 4 browsers and HTML 5 browsers. Some browsers, most notably IE, do not activate help when the title attribute is coded on the <abbr> tag, but they do work as expected for titles on the <a> tag. The <abbr> tag inherits its title attribute from the parent <a> tag.

If you are creating HTML code for the definition of Greenwich Mean Time, the meaning of the acronym GMT, then include a <dfn> definition tag around the <abbr> abbreviation tag and follow the entire HTML code for the hypertext link with the definition of the term:

<p>A <a href="http://www.Acronyms.net/terms/g/Greenwich-Mean-Time/" title="Greenwich Mean Time"
onclick="if (confirm('GMT stands for Greenwich Mean Time')) return false;"
>
<dfn><abbr title="Greenwich Mean Time">GMT</abbr>
</a> is ...(definition of Greenwich Mean Time)....</p>

The <dfn> tag gets the term being defined from the title attribute of the <abbr> tag. The result should look like this (hovering your mouse over the GMT acronym shows the expanded meaning of the acronym):

A GMT is ...(definition of "Greenwich Mean Time")....

If you are creating HTML code that simply expands the acronym then indicate that it is the GMT acronymn which is being defined using an HTML <dfn> tag with a title attribute around the <abbr> tag and follow the HTML for the hypertext link with the acronym definition:

<p>When we use the acronym <a href="http://www.Acronyms.net/terms/g/Greenwich-Mean-Time/" title="Greenwich Mean Time"
onclick="if (confirm('GMT stands for Greenwich Mean Time')) return false;"
>
<dfn title="GMT"><abbr title="Greenwich Mean Time">GMT</abbr></dfn>
</a> it is the abbreviation for Greenwich Mean Time.</p>

The result should look like this (hovering your mouse over the GMT acronym shows the definition):

When we use the acronym GMT it is the abbreviation for Greenwich Mean Time.

Acronym Vocabulary URI Declaration

For the remaining examples, the Acronym Vocabulary namespace URI needs to be declared for use with element tag names and attribute values. For an HTML web page, the beginning of the file should look like this:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html [
<!ENTITY at "http://Acronyms.net/terms/">
<!ENTITY av "http://Acronyms.net/vocabulary/">
]>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:av="&av;">
<head>
<style type="text/css">
.hide { display: none }
</style>
...

This only needs to be done once per document file.

XLink simple link

First, declare the vocabulary as shown above. Then, add acronyms as follows:

<a href="http://www.Acronyms.net/terms/g/Greenwich-Mean-Time/" title="Greenwich Mean Time"
xlink:type="simple"
xlink:href="http://www.Acronyms.net/terms/g/Greenwich-Mean-Time/"
xlink:arcrole="&av;definedAt"
xlink:role="&av;definition"
xlink:title="Greenwich Mean Time"
xlink:show="new"
xlink:actuate="onRequest"
>
<abbr
xlink:type="simple"
xlink:href="&at;Greenwich-Mean-Time"
xlink:arcrole="&av;standsFor"
xlink:role="&av;term"
xlink:title="GMT - Greenwich Mean Time"
xlink:show="new"
xlink:actuate="onRequest"
>GMT</abbr></dfn>
</a>

XLink extended link

First, declare the vocabulary as shown above. Then, add acronyms as follows:

<a xlink:type="extended" href="http://www.Acronyms.net/terms/g/Greenwich-Mean-Time/" title="Greenwich Mean Time">
<abbr xlink:type="resource" xlink:label="acronym">GMT</abbr>
<span class="hide" xlink:type="resource" xlink:label="verbal" xlink:title="pronunciation">g m t</span>
<span class="hide" xlink:type="resource" xlink:label="expand" xlink:title="expansion">Greenwich Mean Time</span>
<span class="hide" xlink:type="locator" xlink:label="term" xlink:role="&av;term" xlink:href="&at;Greenwich-Mean-Time" xlink:title="Greenwich Mean Time"/>
<span class="hide" xlink:type="locator" xlink:label="definition" xlink:role="&av;definition" xlink:href="http://www.Acronyms.net/terms/g/Greenwich-Mean-Time/" xlink:title="Greenwich Mean Time"/>
<span class="hide" xlink:type="locator" xlink:label="finder" xlink:role="&av;reference" xlink:href="http://www.Acronyms.net/reference/g/GMT#Greenwich-Mean-Time" xlink:title="GMT - Greenwich Mean Time"/>
<span class="hide" xlink:type="arc" xlink:from="acronym" xlink:arcrole="&av;pronounceAs" xlink:to="verbal" xlink:actuate="onLoad"/>
<span class="hide" xlink:type="arc" xlink:from="acronym" xlink:arcrole="&av;expandsTo" xlink:to="expand"/>
<span class="hide" xlink:type="arc" xlink:from="acronym" xlink:arcrole="&av;standsFor" xlink:to="term"/>
<span class="hide" xlink:type="arc" xlink:from="term" xlink:arcrole="&av;definedAt" xlink:to="definition" xlink:show="new" xlink:actuate="onRequest"/>
<span class="hide" xlink:type="arc" xlink:from="acronym" xlink:arcrole="&av;foundAt" xlink:to="finder" xlink:show="new" xlink:actuate="onRequest"/>
</a>

embedded RDF metadata

First, declare the vocabulary as shown above. Then, add acronyms as follows:

<a href="http://www.Acronyms.net/terms/g/Greenwich-Mean-Time/" title="Greenwich Mean Time">
<abbr>GMT</abbr>
</a>

Printer-friendly PDF* format:

Greenwich Mean Time

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