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 … Images are often used as links to other websites. Why do massive stars not undergo a helium flash. Question would've been easily answered if you had spent the time to type in three words into a Google search. In addition, search engines that offer image-based search capabilities rely on the alt text to determine the meaning of images. When liver cells are damaged, they release ALT into the bloodstream. In cases where the image provides textual information simply provide the exact same text as the alt text. 2. An example of it's purpose would be if a blind person can't see the photos. The alanine aminotransferase (ALT) test is a blood test that checks for liver damage. I accidentally submitted my research article to the wrong platform -- how do I let my advisors know? rev 2021.1.8.38287, Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide. What are valid values for the id attribute in HTML? An alanine aminotransferase (ALT) test measures the level of ALT in your blood. Why does HTML think “chucknorris” is a color? There are two different ways you can supplement the short alternative text with an extended description that provides a lot more detail: Another way to provide an extended description in the past was to make use of the longdesc attribute. Looking for the definition of ALT? High levels of these enzymes can be a sign that the liver is injured or irritated, and the enzymes are leaking out of the liver cells. However, when text alternatives aren’t used properly they can create confusion. For instance, visually impaired people are at a disadvantage when browsing a website that use images for navigation, since they don’t have a way of knowing the main categories of the website. I have a confusion on using image and alt in learning HTML. Asking for help, clarification, or responding to other answers. Where should I put