What are the essential differences between <acronym> and <abbr>? -

0 reply content: I simply drew a picture, not sure whether my understanding is accurate. I simply drew a picture, not sure whether my understanding is accurate.

• Abbreviation is a broad concept in a broad sense. It can be used to describe abbreviations in daily life.
• Initialism refers to the most easy-to-understand abbreviation. people read the letters one by one when reading them.
• Acronym is also the abbreviation at first, but people gradually distinguish it from initialism. The difference is that acronym can be used to read the abbreviations in the form of words, and even acronym can be regarded as acronym, and some acronym have become common words, it does not even need to be capitalized.

For W3C standards, in HTML 4.01 (Paragraphs, Lines, and Phrases ):

ABBR:Indicates an abbreviated form (e.g., WWW, HTTP, URI, Mass., etc .).
ACRONYM:Indicates an acronym (e.g., WAC, radar, etc .).

Here, the abbr should be closer to the gray background (not necessarily) in the figure above, and acronym is the yellow background. I want to differentiate the two abbreviations. The most useful reason is that you can give accurate pronunciation when reading acronym content using the screen reader. For example, according to the voice style (Aural style sheets) of CSS 2.1 ), We can provide this style to the screen reader:

abbr { speak: spell-out; }acronym { speak: normal; }

It is only used to mark the General abbreviation and acronym (acronym refers to a special abbreviation) respectively ). The essential difference is the semantic difference. However, such semantic division is too cumbersome and fragmented.

So HTML5 has been deprecated:

11 Obsolete features
11.2 Non-conforming features
Elements in the following list are entirely obsolete, and must not be used by authors:
...
: Use Instead.
...

Stop using it. You just need to know its history. There are no restrictions on word shortening, such as min. (minute), Inc. (including), etc. (et ceing), and FBI.

It is a special type. It is generally composed of a part starting with a word (usually the first letter), and the pronunciation is usually based on the words after the combination:

NATOSonarHTMLFBI