3 lines
		
	
	
		
			300 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			3 lines
		
	
	
		
			300 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| required [HTML5]
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| This attribute specifies that the user must fill in a value before submitting a form. It cannot be used when the type attribute is hidden, image, or a button type (submit, reset, or button). The :optional and :required CSS pseudo-classes will be applied to the field as appropriate. |