<div class="mail-style1">
<div class="input-group">
    <input id="mc4wp_email" class="form-control input-newletter" name="EMAIL" required="required" type="email" placeholder="Enter your email..." /> 
	<button type="submit" value="Submit"> <span>Subscribe</span><i class="linear-icon-envelope"></i></button>
  </div>
</div>