Load javascript before rendering page?

Question

I want to run some jquery code before my page have loaded. Im adding some classes which are changing the css with javascript, and when the page loads i see the \"old\" css f

Answer 1

Put your code in document ready. Everything inside it will load as soon as the DOM is loaded and before the page contents are loaded

$(function(){
 your code goes here...
});

Or

$(document).ready(function(){
 your code goes here..
});