body {background-color: lightgoldenrodyellow;}
h1 {color: white;
    text-align: center;
    background-color: lightslategray;}
    img:hover {
        border: 2px solid blue;
      }
      

    /* unvisited link */
a:link {
    color: black;
  }
  
  /* visited link */
  a:visited {
    color: white;
  }
  
  /* mouse over link */
  a:hover {
    color: lightseagreen;
  }
  
  /* selected link */
  a:active {
    color: lightskyblue;
  }
  .planet{color:white;
    text-align:left;
    background-color:lightslategray; border-radius:8px
}
h2{color:aquamarine}