Carbon is IBM’s open-source design system for products and experiences. With the IBM Design Language as its foundation, the system consists of working code, design tools and resources, …

The purpose of the Open UI, a W3C Community Group, is to allow web developers to style and extend built-in web UI components and controls, such as <select> dropdowns, checkboxes, …

The <menubar> element represents an in-page group of <menuitem> elements that can either invoke commands or open submenus of commands. It defaults to a horizontal orientation, and …

Aug 5, 2025 · There are many useful use cases for offering a hovercard on anchors, such as signalling that they are external, or that they will open in a new window, or to show preview …

The Open UI Community Group is tasked with facilitating a larger architectural plan for how HTML, CSS, JS, and Web APIs can be combined to provide needed technology so web …

Feb 20, 2025 · For the user to have navigated to a button that opens a modal dialog, the dialog must not be open. If the dialog is open then the button will be inert, therefore non-navigable, …

There are several ways to “open” an openable, and they are discussed in this section. When any of these methods are used to open an openable, it will be made visible.

Welcome to the Open UI working mode and process guide to paving inclusive and accessible best practices into web browsers based on web frameworks and web developer norms.

For the purposes of Open UI, we consider a Web Component to be an implementation. We still distinguish between a “Web Component” and a “graduated” component, because of the …

In an exclusive accordion, opening one of the items closes any existing open item. Some exclusive accordions are even more specific and at any moment in time exactly one disclosure …