title: how does clearfix work?
body: <p>I'm cloning the home page of a website and while I was tracing and copying their codes I saw that my vertical scroll bar has doubled (when I got to the container part). I am trying to search how to get rid of this and some people said that you have to fix the height of the body to 100% or simply put overflow-y:hidden, yes it worked but my other problem now is that, some of the contents below was missing. It will just appear if the other vertical scroll bar is there and I think it has something to do with this "clearfix" thing and I still don't understand how it work. Please help me get rid of this, I'm still an intern and I still don't have an idea about css3 or whatever this is and website cloning is one of my project. Thanks!</p>