body {
    background-color:black;
    color:white;
    }
  h1 {
    background-color:darkslategrey;
    text-align:center;
    padding:10px;
    margin:0px 250px
    }
  h2 {
    background-color:darkslategrey;
    text-align:center;
    padding:10px;
    margin:0px 250px
    }
  p {
    background-color:darkslategrey;
    text-align:center;
    padding:10px;
    margin:0px 250px
    }
  ul {
    background-color:darkslategrey;
    padding:30px;
    margin:0px 250px
    }