HTML fieldset and nested fieldset test

<form class="example" action="#">
	<fieldset>
		<legend>Personal details</legend>
		<div>
			<label for="a">Name</label>
			<input id="a" name="a" type="text">
		</div>
		<div>
			<label for="b">Address</label>
			<input id="b" name="b" type="text">
		</div>
	</fieldset>
</form>

<form class="example" action="#">
	<fieldset>
		<legend>Add your details</legend>
		<div class="row-form">
			<label for="c">Phone</label>
			<input id="c" name="c" type="text">
		</div>
		<fieldset>
			<legend>Favourite colors?</legend>
			<div>
				<input type="checkbox" id="red" name="red">
				<label for="red">red</label>
			</div>
			<div>
				<input type="checkbox" id="green" name="green">
				<label for="green">green</label>
			</div>
		</fieldset>
		<div class="row-form">
			<label for="d">Email</label>
			<input id="d" name="d" type="text">
		</div>
	</fieldset>
</form>