An id on a <dt> tag assigns an identifier to the element.
The identifier must be unique across the page.
An id attribute on 3 <dt> elements.
<dl>
<dt id="dt-kunst">Kunstmuseum</dt>
<dd>Basel, Switzerland</dd>
<dt id="dt-gallery">National Gallery of Art</dt>
<dd>Washington DC, USA</dd>
<dt id="dt-orsay">Musée d'Orsay</dt>
<dd>Paris, France</dd>
</dl>
The id attribute assigns an identifier to the <dt> element.
The identifier must be unique across the page.
Tip: id is a global attribute that can be applied to any HTML element.
<dt id="identifier" />
| Value | Description |
|---|---|
| identifier | A unique alphanumeric string. The id value must begin with a letter ([aside-Zaside-z]) and may be followed by any number of letters, digits ([0-9]), hyphens (-), underscores (_), colons (:), and periods (.). |
Three <dt> elements, each with a unique id.
Clicking the buttons displays the content of the respective <dt> elements.
<dl>
<dt id="mydt1">1. Kunstmuseum</dt>
<dd>Basel, Switzerland</dd>
<dt id="mydt2">2. National Gallery of Art</dt>
<dd>Washington DC, USA</dd>
<dt id="mydt3">3. Musée d'Orsay</dt>
<dd>Paris, France</dd>
</dl>
<br />
<button onclick="show('mydt1')">Show 1</button>
<button onclick="show('mydt2')">Show 2</button>
<button onclick="show('mydt3')">Show 3</button>
<script>
let show = id => {
let element = document.getElementById(id);
alert("Location = " + element.innerHTML);
}
</script>
The id attributes assign a unique identifier to the <dt> elements.
Clicking the buttons calls JavaScript which locates the elements using their ids.
Finally, the content of the <dt> element 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 <dt>
