<h2>Radio</h2>
	<input type="radio" value="1" name="rdTest" id="rdTest1"/><label for="rdTest1">Option 1</label>
	<br/>
	<input type="radio" value="2" name="rdTest" id="rdTest2"/><label for="rdTest2">Option 2</label>

	<br/><br/><br/>
	<h2>CheckBox</h2>
	<input type="checkbox" value="1" id="chkTest"/> <label for="chkTest">Option 1</label>

	<br/><br/><br/>
	<h2>Placeholder</h2>
	<input type="text" placeholder="Guide the user"/>

I hope that helps you. mauriciojunior.net

Usar o label faz toda a diferença no código