Using label as place holder for input

This is what we will create

So.. now that you see it, let's do it!

CSS

div.form{
    margin:4px;
}

div.form div.simple{
    margin:15px 0px;
}

div.form div.simple input{
    background:transparent;
    min-width:400px;
    padding:7px;
    font-size:15px;
    border:1px solid #aaa;
}

div.form label{
    color:#aaa;
    position:absolute;
    margin-left:5px;
}

Html structure

<div class="form">
    <form action="" method="post">
        <div class="simple">
            <label for="nome">Nome</label>
            <input type="text" name="nome" value="" />
        </div>

        <div class="simple">
            <label for="email">Email</label>
            <input type="text" name="email" />
        </div>

        <div class="action">
            <input type="submit" value="Send" />
        </div>
    </form>
</div>

JS for hidding the label after user inserts a value

$('form input').focus(function(){
            $(this).parent().find('label').hide();
        }).blur(function(){
            if($(this).val()==''){
                $(this).parent().find('label').show();
            }
});

And there you go! As simple as that!