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Keyboard navigation through all focusable interactive elements isn’t enabled by default on macOS for Safari and Firefox browsers, but there is a way to solve that issue.

The alt attribute provides an alternative description for a non-text element¹ and normally is not presented to the user but will be available under certain circumstances. The following is the most general guideline to follow while creating an alternate text:

Creating an image gallery that is accessible, responsive and with automatic preload has always been a challenge.

The browser viewport is the screen that actually shows the webpage. Determining its size might be handy when we want to provide some specific features for the viewport size. Here we want to utilize CSS media query and a little JavaScript to get the viewport size.

A single-page application (known as SPA) is a web app implementation that loads only a single page, and then updates the content of that single document dynamically using JavaScript.

A tooltip – widely used feature across the web. Hundred of different approaches and implementations. The ARIA Authoring Practices Guide (APG) defines the tooltip in following way:

The declaration is classified as significant by a ! (exclamation mark) delimiter and the important keyword. The !important flag alters the rules selecting declarations inside the cascade. A declaration that is not important is called normal.

The browser loads all the files necessary for the page to render the site as you expect. This implies that all items, including those images that aren’t visible and haven’t got the lazy loading technique, will be requested.

If your website uses quite a lot of images then this may impact the page loading speed as well as the page rendering.

Digital accessibility refers to providing an equivalent user experience for people with disabilities, including auditory, cognitive, neurological, physical, speech, and visual disabilities. That means also providing web-based information, digital content, applications, and resources that are available and used by everyone.