Blog Template Configuration

I have been googling for a while so as to configurate the blog template as I want. There are two things that I want to remove which are: "Picture Window Template. Powered by Blogger" and "Subscribe to: Posts (Atom)". As a result, I have followed the instructions seeing below.

REMOVE Subscribe to: Posts (Atom) [1]

REMOVE the bottom tag "Picture Window Template. Powered by Blogger"

Go to the Dashboard > Customise > Advanced > Add CSS - Paste the following code

#Attribution1 {

   display: none!important;

}

References:
[1] http://bloggeruniversity.blogspot.mx/2008/04/remove-subscribe-to-posts-atom.html
[2] http://productforums.google.com/forum/#!topic/blogger/hsoN4_-hvWo