Hi there, 

I was wondering how can I create a homepage like this: http://spranklamp.com/ (That is a site that is using the same theme) 

I want no margins

I am trying to add custom css to the page but seems not working

* {
  margin: 0;
  padding: 0;
}

Thank you in advance!

I added this code for the no margins but is not working

* {
  margin: 0;
  padding: 0;
}