HTML Reference HTML by Alphabet HTML by Category HTML Attributes HTML Global Attributes HTML Events HTML Canvas HTML Audio/Video HTML Doctypes HTML URL Encode HTML Language Codes HTML Country Codes HTTP Messages HTTP Methods PX to EM Converter Keyboard Shortcuts Image with only an alt attribute. To be accessible, an image must have an alt attribute. The required alt attribute specifies an alternate text for an image, if the image cannot be displayed. Use of the title attribute is known to be an unreliable method to visually convey information to users. It is required for the tag too. For example, an image of a warning sign should not have alt text âa triangle with a yellow background, black border and an exclamation markâ, but simply âWarning!ââunless, of course, the image's purpose is to show what the warning symbol actually looks like. [3] It is optional for the input tag and the deprecated applet tag. The value of the alt attribute describes the image in words. However, it may not contain text (empty or null attribute). An alternative alt attribute value would be "The Danish flag". Internet Explorer 7 and earlier render text in alt attributes as tooltip text, which is not standards-compliant. This alternate text i.e. How does Alt Attribute work in HTML? Follow these simple rulesto provide your website visitors with the best experience possible. the URL of the image, or a fixed text string. Default value . It can be an empty or null attribute: alt=.[1]. The HTML standard doesn't give a list of image formats that must be supported, so each user agent supports a different set of formats. The "alt" attribute defines an alternate name for the image. Refer to a Short note on alt in HTML. The "alt" attribute defines an alternate text for the image, if it can't be displayed. This makes the page navigable for users of screen readers or non-graphical browsers. You see, I learned to write HTML well before the title element came along, and honestly, for the longest time I didn't give it any thought beyond using it for tooltips. Alt Attribute. If you want balloon text to appear when the mouse hovers over an image, add "title" to the img HTML tag as shown in the example code below. The alt attribute is the HTML attribute used in HTML and XHTML documents to specify alternative text (alt text) that is to be rendered when the element to which it is applied cannot be rendered. Alternative text that appears when a HTML element cannot be rendered, For the use of alt attributes in Wikipedia, see, "In the sky flies a red flag with a white cross whose vertical bar is shifted toward the flagpole. Last Updated: 27-05-2019 The alt attribute is used to specify the alternate text for an image. However, when text alternatives aren't used properly they can create confusion. Supported elements . HTML alt Attribute. The alt attribute can also be used by screen readers to allow visually impaired users to interact with a webpage. A piece of text containing a short description of the adjacent content. Syntax ..... Where ElementName is any supported element. Often it’s shown in the space where an image would normally appear. The purpose of the HTML align attribute is to specify the alignment of data and the justification of text in a cell of a table. Value. The attribute was introduced in HTML 2[2] and in HTML 4.01 was required for the img and area tags. Some time if the image file not found or due to pour page load the image not show. If the image fails to render, the alt text is provided, but not the image title. This is NOT the correct behavior, according to the HTML specification. Refer to Using the HTML title attribute. Every image should have an alt attribute to be accessible, but it need not contain text. Attributes … Best Practices: How to write an alt text Note: For elements, the alt attribute can only be used with . The HTML for this image might be something like the following: A visually impaired reader using a screen reader such as Orca will hear the alt text in place of the image. HTML align attribute supports col, colgroup, tbody, td, tfoot, th, thead, tr elements. "/uploads/media/news_gallery/0001/01/thumb_316_news_gallery_list.jpeg", "/uploads/media/book_gallery/0001/01/d450f0358f947dffb3af91195c3002600d74101b.png", "/uploads/media/book_gallery/0001/01/25521e981b34da57c8f51baddc5b76351b855818.png", "/uploads/media/book_gallery/0001/01/4bbee6698c4884f25c46010d61b658dd62d2c04f.png", "/uploads/media/default/0001/01/25acddb3da54207bc6beb5838f65f022feaa81d7.jpeg", "https://i7.pngguru.com/preview/278/823/594/computer-icons-button-clip-art-green-submit-button-png.jpg". The alt attribute is supposed to be an alternative for the image, usually stating its purpose. alt is visible when the image isn’t displayed for reasons like internet, loading issues, errors, etc. HTML Web Development Front End Technology. Its value is a descriptive text displayed in the browser before the image is loaded. The value of the hrefattribute can be either the file name or its URL. It specifies an alternative text which must be rendered if the element cannot be displayed for some reason. Alt text is the HTML alt attribute and it gives more information about the image. Alt Attribute provides alternative information for the image to recognize what the image is meant for. The HTML element contains zero or more elements and one element to offer alternative versions of an image for different display/device scenarios. Supported tags: area; image; input; Example: Img alt attribute. To be accessible, an image must have an alt attribute. Some history. The alt attribute is the HTML attribute used in HTML and XHTML documents to specify alternative text (alt text) that is to be rendered when the element to which it is applied cannot be rendered. No special characters. This attribute allows only text. [8], The alt attribute is commonly, but incorrectly, referred to as the "alt tag".[5][9][10]. Alt text (alternative text), also known as \"alt attributes\", “alt descriptions\", or technically incorrectly as \"alt tags,” are Accept. The alt attribute can also be used by screen readers to allow visually impaired users to interact with a webpage. The alt attribute is used by "screen reader" software so that a person who is listening to the content of a webpage (for instance, a person who is blind) can interact with this element. It is used to give alternative information for an image. The HTML alt attribute is used in HTML and XHTML documents. HTML elements can have attributes. It is required, as it defines the path to the image. If (in breach of the standard) no alt attribute has been supplied, then browsers that cannot display the image will still display something there, e.g. [7] As of Internet Explorer 8 alt attributes no longer render as tooltips. The alt attribute specifies an alternative text for an image. A text browser such as Lynx will display the alt text instead of the image. If somehow the browser is not able to display an image, then the alternate text will be … L’attributo ALT, o Tag ALT di un’immagine è un tassello indispensabile ai fini dell’ ottimizzazione SEO. Large or small screens, and resized windows will create different results. The HTML alt attribute Use the alt attribute to supply an alternative description of the element. We use cookies to improve user experience, and analyze website traffic. Type of value. The alt attribute provides alternative information for an image if a user for some reason cannot view it (because of slow connection, an error in the src attribute, or if the user uses a screen reader). The HTML alt attribute is used in HTML and XHTML documents. [4][5] This behavior led many web developers to misuse alt when they wished to display tooltips containing additional information about images,[6] instead of using the title attribute that was intended for that use. The "src" (source) attribute shows the image source. The alt attribute does not always have to literally describe the contents of the image. In this case, if the image truly does not add to the content, then a blank alt attribute should be included in the form of alt="". A graphical browser typically will display only the image, and will display the alt text only if the user asks it to show the image's properties or has configured the browser not to display images, or if the browser was unable to retrieve or to decode the image. HTML (Tags n Attributes ( (src (source file), alt ( …: HTML (Tags n Attributes, HTML Elements, HTML Display (You cannot be sure how HTML will be displayed. The ALT attribute is for the visually impaired user that would use a screen reader. The browser also shows this text when you hover over the image. Attributes provide detailed information about an element. Image title is displayed as a popup when you hover your mouse on an image. Syntax Learn html - html tutorial - Alt attribute in html - html examples - html programs The alt attribute is used to declare the alternate name for the image. This includes UTF-8 characters such as unencoded curly quotes, as well as HTML Character Entities. 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