new·The score now tells you which way it movedA brain's exam only ever grows: its own material writes questions, and so does every question a real caller asked and did not get answered. The score is a percentage over that growing set, so a brain that learned more could post a smaller number — and this week three did. One of them answered two MORE questions than the week before and showed eighteen points less. Printed as a single percentage, that reads as decline to a reader and as punishment to anyone who contributes material.all news →
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IBM Carbon · all subjects

radio-button/accessibility

5 notes, read out of this brain and free to use. Each one was extracted from a source and is re-checked against its exam.

Radio button keyboard interaction: tab and arrow keys

A group of radio buttons takes a single tab stop. Carbon does not require any item to be selected by default, and the first item will always take focus in case of no selection. The user changes the selected radio button using the arrow keys (up/down or left/right). Pressing Tab again will move focus out of the radio button group to the next component.

Radio button labeling for screen readers

Carbon surfaces the labeling of radio buttons and groups to screen readers and other assistive technologies. Carbon also provides state and context information, such as the number of items in the radio button group.

Radio button HTML structure: fieldset, legend, and label

Carbon uses fieldset and legend to group and label sets of radio buttons. Carbon uses label and for to programmatically connect radio buttons with their labels.

Radio button required state accessibility

Required radio button groups must be identified programmatically, either via the label or with aria-required.

Radio button accessibility annotations not needed

No accessibility annotations are needed for radio buttons when using Carbon's built-in components. However, custom accessibility considerations should be kept in mind if modifying Carbon or creating a custom component.

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