HTML abbr Tag
The HTML <abbr> tag is supported by all popular browsers. Not supported by E6 and older versions. By using the standard title property, you can define the expansion of the abbreviated text by hovering over it.
<p>An abbreviation:
<abbr title="Search Engine Optimization">SEO</abbr>
</p>
The <abbr> tag is used to define abbreviations such as "SEO" or "WWW".
By using this tag, you can help crawlers, grammar checkers, translation tools, and search engines use your page better.
Default CSS Values
abbr[title] {
text-decoration: underline dotted;
}
This tag is used to mark abbreviations on the page. These abbreviations are for example HTML, W3C etc. it could be. When using the tag, it is necessary to use it with the title attribute, because the title attribute contains the long version of the abbreviation.