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The <form> element is a container for different types of input elements, such as: text fields, checkboxes, radio buttons, submit buttons, etc. All the different form elements are covered in this chapter: HTML Form Elements.
Definition and Usage. The <form> tag is used to create an HTML form for user input. The <form> element can contain one or more of the following form elements: <input>. <textarea>. <button>. <select>. <option>. <optgroup>.
The HTML <form> Elements. The HTML <form> element can contain one or more of the following form elements: <input> <label> <select> <textarea> <button> <fieldset> <legend> <datalist> <output> <option> <optgroup>
The Action Attribute. The action attribute defines the action to be performed when the form is submitted. Usually, the form data is sent to a file on the server when the user clicks on the submit button. In the example below, the form data is sent to a file called "action_page.php".
The input min and max attributes specify the minimum and maximum values for an input field. The min and max attributes work with the following input types: number, range, date, datetime-local, month, time and week. Tip: Use the max and min attributes together to create a range of legal values.
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How To Create a Responsive Form Step 1) Add HTML. Use a <form> element to process the input. You can learn more about this in our PHP tutorial. Add inputs (with a matching label) for each field, and wrap a <div> element around each label and input to set a specified width with CSS:
The input formmethod attribute defines the HTTP method for sending form-data to the action URL. Note: This attribute overrides the method attribute of the <form> element. The formmethod attribute works with the following input types: submit and image.
The <input type="hidden"> defines a hidden input field (not visible to a user). A hidden field lets web developers include data that cannot be seen or modified by users when a form is submitted. A hidden field often stores what database record that needs to be updated when the form is submitted.
The method attribute specifies how to send form-data (the form-data is sent to the page specified in the action attribute). The form-data can be sent as URL variables (with method="get" ) or as HTTP post transaction (with method="post" ).
