a/19745730/1636522

HTML

<form >
    <div>
        <label>First name :</label>
        <input name="firstname" type="text" required="required" pattern="^[01][0-9]{9}$" />
    </div>
  
    <input type="reset" />
    <input type="submit" />
    <span></span>
</form>

CSS

*{font-family:Consolas}
div *{float:left}
div:before,
div:after{content:" ";display:table;}
div:after{clear: both;}
div{*zoom:1;}
label{display:block;width:120px;padding-top:2px}

JavaScript

function output(s) {
    $('span').text(s);
}