input type=radio element

with label first button checked

with label + disabled

with label + fieldset + legend

Code

<form>
		<fieldset>
		<legend>gender</legend>
		<label><input type="radio" name="sex" value="male" checked> Male</label>
		<label> <input type="radio" name="sex" value="female"> Female</label>
		</fieldset>
		</form>
		

Reference

HTML5 input type=radio element