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What does the component do?
It is used to select precisely one of several options.
When should the component be used?
When there are two or more options and the options mutually exclude one another.
Rules
A radio button is only permitted within a form.
There must be a choice of at least two options.
A pre-selection is mandatory.
Radio buttons can be arranged vertically or horizontally. The vertical layout is preferred as it allows the user to understand the options more quickly.
The text can be multi-line.
In addition to the actual radio button, the entire text can also be used as a click target.
A title can be used above a radio button group.
A question mark in the circle can also be shown – in addition to the title – for detailed explanations on a radio button group. A tooltip opens if this question mark is clicked on.