Radio inputs allow users to select one item at a time.
Radio groups provide a list of available items to choose from from which only one option can be selected.
You can Use attribute checked to default one option to a checked state.
<div class="ds-block">
<form class="ds-form">
<fieldset class="ds-control-group">
<legend class="ds-legend ">
Are you hungry?
</legend>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-1" checked>
<label class="ds-label" for="uniqueID-1">Yes</label>
</div>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-2">
<label class="ds-label" for="uniqueID-2">No</label>
</div>
</fieldset>
</form>
</div>Add <abbr class="ds-label__required" title="required">*</abbr> tag after legend text
<div class="ds-block">
<form class="ds-form">
<fieldset class="ds-control-group">
<legend class="ds-legend ">
Are you hungry? <abbr class="ds-label__required" title="required">*</abbr>
</legend>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-1" checked>
<label class="ds-label" for="uniqueID-1">Yes</label>
</div>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-2">
<label class="ds-label" for="uniqueID-2">No</label>
</div>
</fieldset>
</form>
</div><div class="ds-block">
<form class="ds-form">
<fieldset class="ds-control-group">
<legend class="ds-legend ">
Are you hungry?
</legend>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-1" checked>
<label class="ds-label" for="uniqueID-1">Yes</label>
</div>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-2">
<label class="ds-label" for="uniqueID-2">No</label>
</div>
</fieldset>
<small class="ds-hint" id="text-hint">Your hunger is important to us.</small>
</form>
</div><div class="ds-block">
<form class="ds-form">
<fieldset class="ds-control-group">
<legend class="ds-legend ">
Are you hungry?
</legend>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-1" disabled>
<label class="ds-label" for="uniqueID-1">Yes</label>
</div>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-2" disabled>
<label class="ds-label" for="uniqueID-2">No</label>
</div>
</fieldset>
</form>
</div><div class="ds-block">
<form class="ds-form">
<fieldset class="ds-control-group">
<legend class="ds-legend ">
Are you hungry?
</legend>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-1" checked>
<label class="ds-label" for="uniqueID-1">Yes</label>
</div>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-2">
<label class="ds-label" for="uniqueID-2">No</label>
</div>
</fieldset>
<small class="ds-hint" id="text-hint">Your hunger is important to us.</small>
<small class="ds-hint ds-hint--invalid">Invalid message</small>
</form>
</div><div class="ds-block">
<form class="ds-form">
<fieldset class="ds-control-group">
<legend class="ds-legend ">
Are you hungry?
</legend>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-1" checked>
<label class="ds-label" for="uniqueID-1">Yes</label>
</div>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-2">
<label class="ds-label" for="uniqueID-2">No</label>
</div>
</fieldset>
<small class="ds-hint" id="text-hint">Your hunger is important to us.</small>
<small class="ds-hint ds-hint--valid">Succesfully message</small>
</form>
</div>Add ds-control-group--inline modifier class to ds-control-group fieldset for inline radio boxes.
<div class="ds-block">
<form class="ds-form">
<fieldset class="ds-control-group ds-control-group--inline">
<legend class="ds-legend">
Are you hungry:
</legend>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-1" checked>
<label class="ds-label" for="uniqueID-1">Yes</label>
</div>
<div class="ds-form-group">
<input class="ds-input-radio" type="radio" name="brew" id="uniqueID-2">
<label class="ds-label" for="uniqueID-2">No</label>
</div>
</fieldset>
</form>
</div>