body {
    color: black;
    /*background-color: #f8f8ff;*/
    }
  P { 
    text-indent: 1em; 
    }

  h1 { 
    padding: 5px;
    /*background-color: lightskyblue;*/
    }

  h2 { 
    padding: 5px;
    background-color: aquamarine;
    }

  h3 { 
    padding: 5px;
    background-color: wheat;
    margin-left: 10px;
    }

  h4 {
    padding: 5px;
    background-color: rgb(255, 204, 255);
    margin-left: 20px;
    }