body{
        text-align: center;
        background-color: lightgray;
       }
       h1{
            text-align: center;
            background-color: lightgreen;
            text-decoration: underline;
        }
      h2 {
            text-align: center;
            background-color: lightgreen;
            text-decoration: underline;
        }
        
        li {
            text-align: center;
        }