Text White Space Regex Validaion

HTML

<script src="//code.jquery.com/jquery-1.10.2.js"></script>
<p><input type="text"> <span>focus fire</span></p>
<p><input type="password"> <span>focus fire</span></p>

CSS

span {
    display: none;
  }

JavaScript

$( "p" ).focus(function() {
  $( this ).next( "span" ).css( "display", "inline" ).fadeOut( 1000 );
});