This chapter describes all of the different HTML form elements avalible.
The HTML <form> element can contain one or more of the following form elements:
<input><label><select><textarea><button><fieldset><legend><datalist><option><optgroup>One of the most used form elements is the <input> element
The <input> element can be displayed in several ways, depending on the type attribute.
The <label> element defines a label for several form elements.
The <label> element is useful for people using screen-readers, as the screen-reader will read the label out loud when the user focus on the form element.
The <label> element also help users who have difficulty clicking on very small regions (such as radio buttons or checkboxes) - because when the user clicks the text within the <label> element, it toggles the radio button/checkbox.
The for attribute of the <label> tag should be equal to the id attribute of the <input> element to bind them together.
The <select> element defines a drop-down list:
The <option> elements defines an option that can be selected.
By default, the first item in the drop-down list is selected.
To define a pre-selected option, add the selected attribute to the option:
Use the size attribute to specify the number of visible values:
Use the multiple attribute to allow the user to select more than one value:
The <textarea> element defines a multi-line input field (a text area):
The rows attribute specifies the visible number of lines in a text area.
The cols attribute specifies the visible width of a text area.
This is how the HTML code above will be displayed in a browser:
The <button> element defines a clickable button:
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Note: Always specify the type attribute for the button element.
The <fieldset> element is used to group related data in a form.
The <legend> element defines a caption for the <fieldset> element.
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The <datalist> element specifies a list of pre-defined options for an <input> element.
Users will see a drop-down list of the pre-defined options as they input data.
The list attribute of the <input> element, must refer to the id attribute of the <datalist> element.