An id on a <blockquote> tag assigns an identifier to the blockquote.
The identifier must be unique across the page.
An id attribute on a <blockquote> tag.
And so, my fellow Americans: ask not what your country can do for you – ask what you can do for your country. My fellow citizens of the world: ask not what America will do for you, but what together we can do for the freedom of man.-- President Kennedy, 1961, Inaugural address.
<acticle>
<blockquote id="kennedy-inauguration">
And so, my fellow Americans: ask not what your country
can do for you – ask what you can do for your country.
My fellow citizens of the world: ask not what America
will do for you, but what together we can do for the
freedom of man.
</blockquote>
-- President Kennedy, 1961, Inaugural address.
</article>
The id attribute assigns an identifier to the <blockquote> element.
The id allows JavaScript to easily access the <blockquote> element.
It is also used to point to a specific id selector in a style sheet.
Tip: id is a global attribute that can be applied to any HTML element.
<blockquote id="identifier" />
| Value | Description |
|---|---|
| identifier | A unique alphanumeric string. The id value must begin with a letter ([A-Za-z]) and may be followed by any number of letters, digits ([0-9]), hyphens (-), underscores (_), colons (:), and periods (.). |
A <blockquote> with a unique id.
Clicking the button displays the content of the element.
And so, my fellow Americans: ask not what your country can do for you – ask what you can do for your country. My fellow citizens of the world: ask not what America will do for you, but what together we can do for the freedom of man.-- President Kennedy, 1961, Inaugural address
<article>
<blockquote id="kennedyquote">
And so, my fellow Americans: ask not what your country
can do for you – ask what you can do for your country.
My fellow citizens of the world: ask not what America
will do for you, but what together we can do for the
freedom of man.
</blockquote>
-- President Kennedy, 1961, Inaugural address
</article>
<br />
<button onclick="show();">Show quote</button>
<script>
let show = () => {
let element = document.getElementById("kennedyquote");
alert("Quote = " + element.innerHTML);
}
</script>
The id attribute assigns a unique identifier for the <blockquote> element.
Clicking the button calls JavaScript which locates the <blockquote> using the id.
Finally, the content of the blockquote is displayed in an alert box.
Here is when id support started for each browser:
 Chrome
|
1.0 | Sep 2008 |
 Firefox
|
1.0 | Sep 2002 |
 IE/Edge
|
1.0 | Aug 1995 |
 Opera
|
1.0 | Jan 2006 |
 Safari
|
1.0 | Jan 2003 |
Back to <blockquote>
