div.menu_icon#set_up_blog {
  background: url(../images/menu_icons/blog.png) no-repeat center top;
  border: none;
}

div.menu_icon#set_up_blog:hover {
  background: url(../images/menu_icons/blog_on.png) no-repeat center top;
}

div.menu_icon#blog_configuration {
  background: url(../images/menu_icons/blog.png) no-repeat center top;
  border: none;
}

div.menu_icon#blog_configuration:hover {
  background: url(../images/menu_icons/blog_on.png) no-repeat center top;
}

div.menu_icon#manage_posts {
  background: url(../images/menu_icons/blog_posts.png) no-repeat center top;
}

div.menu_icon#manage_posts:hover {
  background: url(../images/menu_icons/blog_posts_on.png) no-repeat center top;
}