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HTML <button> type Attribute. HTML <button> tag. Example. Two button elements that act as one submit button and one reset button (in a form): <form action="/action_page.php" method="get"> <label for="fname"> First name: </label> <input type="text" id="fname" name="fname"><br><br> <label for="lname"> Last name: </label>
- ❮ HTML Tag
A clickable button is marked up as follows: <button...
- ❮ HTML Tag
A clickable button is marked up as follows: <button type="button"> Click Me! </button> Try it Yourself » More "Try it Yourself" examples below. Definition and Usage. The <button> tag defines a clickable button. Inside a <button> element you can put text (and tags like <i>, <b> , <strong>, <br>, <img>, etc.).
- Overview
- Attributes
- Notes
- Accessibility concerns
- Browser compatibility
The HTML element is an interactive element activated by a user with a mouse, keyboard, finger, voice command, or other assistive technology. Once activated, it then performs an action, such as submitting a form or opening a dialog.
By default, HTML buttons are presented in a style resembling the platform the user agent runs on, but you can change buttons' appearance with CSS.
This element's attributes include the global attributes.
autofocus
This Boolean attribute specifies that the button should have input focus when the page loads. Only one element in a document can have this attribute.
disabled
This Boolean attribute prevents the user from interacting with the button: it cannot be pressed or focused.
Firefox, unlike other browsers, persists the dynamic disabled state of a across page loads. To control this feature, use the autocomplete attribute.
A submit button with the attribute formaction set, but without an associated form does nothing. You have to set a form owner, either by wrapping it in a or set the attribute form to the id of the form.
elements are much easier to style than elements. You can add inner HTML content (think , , or even ), and use ::after and ::before pseudo-elements for complex rendering.
If your buttons are not for submitting form data to a server, be sure to set their type attribute to button. Otherwise they will try to submit form data and to load the (nonexistent) response, possibly destroying the current state of the document.
While has no default behavior, event handlers can be scripted to trigger behaviors. An activated button can perform programmable actions using JavaScript, such as removing an item from a list.
Icon buttons
Buttons that only show an icon to represent do not have an accessible name. Accessible names provide information for assistive technology, such as screen readers, to access when they parse the document and generate an accessibility tree. Assistive technology then uses the accessibility tree to navigate and manipulate page content. To give an icon button an accessible name, put text in the element that concisely describes the button's functionality.
ARIA state information
To describe the state of a button the correct ARIA attribute to use is aria-pressed and not aria-checked or aria-selected. To find out more read the information about the ARIA button role.
Firefox
Firefox will add a small dotted border on a focused button. This border is declared through CSS in the browser stylesheet, but you can override it to add your own focused style using button::-moz-focus-inner { }. If overridden, it is important to ensure that the state change when focus is moved to the button is high enough that people experiencing low vision conditions will be able to perceive it. Color contrast ratio is determined by comparing the luminosity of the button text and background color values compared to the background the button is placed on. In order to meet current Web Content Accessibility Guidelines (WCAG), a ratio of 4.5:1 is required for text content and 3:1 for large text. (Large text is defined as 18.66px and bold or larger, or 24px or larger.) •WebAIM: Color Contrast Checker •MDN Understanding WCAG, Guideline 1.4 explanations •Understanding Success Criterion 1.4.3 | W3C Understanding WCAG 2.0
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27 ott 2006 · Perché conviene usare l'elemento button al posto di input, quando e come utilizzarlo: guida completa per sviluppare siti user friendly e leggeri.
7 mar 2024 · <input> elements of type button are rendered as simple push buttons, which can be programmed to control custom functionality anywhere on a webpage as required when assigned an event handler function (typically for the click event).
The HTML tag is used to create clickable buttons on the web page. Try HTML tag example yourself. Learn How to use tag.
24 set 2021 · HTML gives you several ways to add buttons to your website – with the button tag, the anchor link, and the input types of button and submit. In this article, I will walk you through 4 of those methods, so you can start adding buttons to your websites comfortably. How to Add Buttons to your Website with the Button Tag.
