Animate box - increase size of div

jQuery(document).ready(function($) {

  "use strict";

  $("#go").click(function(){

    $("#block").animate({

      width: "70%",

      opacity: 0.4, 

      marginLeft: "0.6in",

      fontSize: "3em",

      padding: "10px",

      borderWidth: "20px"

    }, 1500 );

  });

});