HTML5 new form elements-HTML Tutorial-php.cn

HTML5 new form elements

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Release： 2018-05-08 11:09:59

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This article mainly introduces the new form elements of HTML5, which has certain reference value. Now I share it with everyone. Friends in need can refer to it

##HTML5 Element

The element specifies the option list of the input field

The attribute specifies that the form or input field should Has autocomplete feature. When the user begins typing in an autocomplete field, the browser should display the filled-in options in that field;

Use the list attribute of the element with the element Binding.

<!DOCTYPE HTML>
<html>
	<head>
		<meta charset="utf-8" />
		<title>自选教程(如约智惠.com)</title>
		
	</head>
	<body > 
		<form action="demo-form.php" method="get">
			<input list="browsers" name="browser">
			<datalist id="browsers">
				<option value="Internet Explorer"></option>
				<option value="Firefox"></option>
				<option value="Chrome"></option>
				<option value="Opera"></option>
				<option value="Safari"></option>
			</datalist>
			<input type="submit">
		</form>
		
		<p>
			<strong>注意：</strong>Internet Explorer 9， Safari 不支持 datalist 标签。
		</p>
		
	</body>
</html>

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#HTML5 Element

The purpose of the element is to provide a reliable method of authenticating users.

The tag specifies the key pair generator field used for the form.

When the form is submitted, two keys will be generated, one is the private key and the other is the public key.

The private key is stored on the client, and the public key is sent to the server. The public key can be used later to verify the user's client certificate.

<!DOCTYPE HTML>
<html>
	<head>
		<meta charset="utf-8" />
		<title>自选教程(如约智惠.com)</title>
		
	</head>
	<body > 
		<form action="demo-form.php" method="get">
			用户名：<input list="text" name="usr_name">
			密码：<keygen name="security">
			</datalist>
			<input type="submit">
		</form>
		
		<p>
			<strong>注意：</strong>Internet Explorer 不支持 keygen标签。
		</p>
		
	</body>
</html>

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#HTML5 Element

The element is used for different types of output, such as calculation or script output:

<!DOCTYPE HTML>
<html>
	<head>
		<meta charset="utf-8" />
		<title>自选教程(如约智惠.com)</title>
		
	</head>
	<body > 
		<form oninput="x.value=parseInt(a.value)+parseInt(b.value)"> 0
			<input type="range" id="a" value="50"> 100
			+<input type="number" id="b" value="50">
			=<output name="x" for="a b"></output>
		</form>
		
		<p>
			<strong>注意：</strong>Internet Explorer 不支持 output 标签。
		</p>
		
	</body>
</html>

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HTML5 New Form Element

## TagDescription tag defines a list of options. Use this element in conjunction with an input element to define the possible values of the input. The tag specifies the key pair generator field to use for the form. tag defines different types of output, such as the output of a script.

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