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HTML <fieldset> style Attribute

HTML <embed>

HTML <figcaption>

A style attribute on a <fieldset> tag assigns a unique style to the fieldset.

Its value is CSS that defines the appearance of the fieldset.

Example

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A style attribute on a <fieldset> element.

<form action="/tutorial/action.html">
  <fieldset style="padding:30px; border:3px solid #4238ca; background:#f6f8ff;">
    <legend>Customer Information</legend>
  
    <input type="text" placeholder="First name" name="firstname"><br /><br />
    <input type="text" placeholder="Last name" name="lastname"><br /><br />
    <input type="text" placeholder="City" name="city"><br /><br />
    <div>
      <input type="checkbox" id="insurance" name="hasinsurance" value="hasinsurance">
      <label for="insurance">Has Insurance</label>
    </div>
    
    <input type="submit" value="Submit" />
  </fieldset>
</form>

Using style

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The style attribute specifies the style, i.e. look and feel, of the <fieldset> element.

A style contains any number of CSS property/value pairs, separated by semicolons (;).

The style attribute overrides any other style that was defined in a <style> tag or an external CSS file.

This inline styling affects the current <fieldset> element only.

Syntax

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<fieldset style="CSS-styles">

Values

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Value	Description
CSS-styles	One or more CSS property/value pairs separated by semicolons (;).

More Examples

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A style attribute on a <fieldset> element.
Clicking the button toggles the border color.

<form action="/tutorial/action.html">
  <fieldset id="myfieldset" 
            style="padding:30px; border:3px solid navy; background:aliceblue;">
    <legend>Customer Information</legend>
  
    <input type="text" placeholder="First name" name="firstname"><br /><br />
    <input type="text" placeholder="Last name" name="lastname"><br /><br />
    <input type="text" placeholder="City" name="city"><br /><br />
    <div>
      <input type="checkbox" id="insurance" name="hasinsurance" value="hasinsurance">
      <label for="insurance">Has Insurance</label>
    </div>
    
    <input type="submit" value="Submit" />
  </fieldset>
</form>

<br/><br/>
<button type="button" onclick="toggle();">Toggle style</button>

<script>
  let toggle = () => {

    let element = document.getElementById("myfieldset");

    if (element.style.borderColor === "navy") {
       element.style.borderColor = "orchid";
    } else {
       element.style.borderColor = "navy";
    }
  }
</script>

Code explanation

The style attribute assigns a border color to the <fieldset> element.

Clicking the button calls JavaScript that changes the border color.

Browser support

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Here is when style 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

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Back to <fieldset>