<form action="">
  Adınız :<input type="text" value="ad"><br>
  Soyadınız:<input type="text" value="soyad"><br>
  <input type="submit" value="Gönder">
</form>

*{font-size:20px; margin-bottom:20px;}
input[type="submit"]{display: inline-block; background: #00FF99; padding:20px; border-bottom:4px solid #00CC00; color:#00CC99; text-decoration:none; margin-bottom:20px;}

$("form").submit(function(){
  alert("Gönderildi");
});