Dofactory.com
Dofactory.com
Earn income with your HTML skills
Sign up and we'll send you the best freelance opportunities straight to your inbox.
We're building the largest freelancing marketplace for people like you.
By adding your name & email you agree to our terms, privacy and cookie policies.

HTML <fieldset> id Attribute

An id on a <fieldset> tag assigns an identifier to the element.

The identifier must be unique across the page.

Example

#

An id attribute on a <fieldset>.

Vehicle Details





<form action="/tutorial/action.html">
  <fieldset id="vehicle-fieldset">
    <legend>Vehicle Details</legend>

    <input type="text" placeholder="Make" name="make"><br /><br />
    <input type="text" placeholder="Model" name="model"><br /><br />
    <input type="text" placeholder="Age" name="age"><br /><br />

    <button type="submit">Submit</button>
  </fieldset>
</form>

Using id

The id attribute assigns an identifier to the <fieldset> element.

The id allows JavaScript to easily access the <fieldset> 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.


Syntax

<fieldset id="identifier" />

Values

#

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 (.).

More Examples

A <fieldset> element with a unique id.
Clicking the bottom button clears all the fieldset's input fields that have been entered.

Vehicle Details






<form action="/tutorial/action.html">
  <fieldset id="myfieldset">
    <legend>Vehicle Details</legend>
  
    <input type="text" placeholder="Make" name="make"><br /><br />
    <input type="text" placeholder="Model" name="model"><br /><br />
    <input type="text" placeholder="Age" name="age"><br /><br />
  
    <button type="submit">Submit</button>
  </fieldset>
</form>

<br/>
<button onclick="reset();">Reset values</button>

<script>
  let reset = () => {
    let elements = document.getElementById("myfieldset").getElementsByTagName("input");
    [].forEach.call(elements, element => {
        element.value = "";
    });
  }
</script>

Code explanation

The id attribute assigns a unique identifier for the <fieldset> element.

Clicking the button calls JavaScript which locates the <fieldset> using the id.

Javascript locates all the <input> elements inside the <fieldset> and sets all their values to empty string.


Browser support

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

You may also like

 Back to <fieldset>

Last updated on Sep 30, 2023

Earn income with your HTML skills
Sign up and we'll send you the best freelance opportunities straight to your inbox.
We're building the largest freelancing marketplace for people like you.
By adding your name & email you agree to our terms, privacy and cookie policies.

Guides