So Sorry. Didnt know that. Anyways, here's a piece of the html code:
<body>
<div>
<h4 >Select Option:</h4>
<form >
<select name="products">
<option value="item1">Samsung Galaxy S5</option>
<option value="item2">Samsung Galaxy S4</option>
<option value="item3">Samsung Galaxy S3</option>
<option value="item4">Samsung Galaxy S2</option>
</select>
</form>
</div>
<div>
<h4>Price:</h4>
</div>
</body>
Since i have no idea how to show the price of the selected item, i have left that part.