HTML Code :
<!DOCTYPE html><!-- Opening tag for declaring the document type -->
<html><!-- Opening tag for the root element of the HTML document -->
<head><!-- Opening tag for the document's header section -->
<meta charset="utf-8"><!-- Metadata tag specifying the character encoding of the document -->
<title>How to specify a name for the fieldset</title><!-- Title of the HTML document -->
</head><!-- Closing tag for the document's header section -->
<body><!-- Opening tag for the document's body section -->
<form name="w3r_form"><!-- Opening tag for a form element with the name attribute set to "w3r_form" -->
<fieldset name="w3resource" ><!-- Opening tag for a fieldset element with the name attribute set to "w3resource" -->
Name: <input type="text" name="username" size="30"><br /><br /><!-- Text input field for entering a name -->
Email: <input type="text" name="usermail" size="30" /><br /><br /><!-- Text input field for entering an email address -->
Place: <input type="text" name="userplace" size="10" /><br /><br /><!-- Text input field for entering a place -->
<button type="button" onclick="ChangeColor()">Change background color of fieldset</button><!-- Button to trigger a JavaScript function for changing the background color of the fieldset -->
</fieldset><!-- Closing tag for the fieldset element -->
</form><!-- Closing tag for the form element -->
</body><!-- Closing tag for the document's body section -->
</html><!-- Closing tag for the root element of the HTML document -->
JavaScript Code :
function ChangeColor(){
var fldname = document.getElementsByName("w3resource");
fldname[0].style.backgroundColor = '#C7E9FF';
}
Explanation:
Live Demo :
See the Pen fieldset-name-answer by w3resource (@w3resource) on CodePen.
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HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4