body {
    background-color:rgb(58, 58, 58) ;
    color: white;
    font-family: Helvetica Neue, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    }
    header {
        background-color: black;
        padding: 20px
    }
   section{
    background-color: white;
    color: gray;
    padding: 20px;
    display: flex;
    flex-direction: row;
   } 
   div {
    background-color: rgb(20, 42, 41);
    margin: auto;
    width: 500 px;
   }

   ul {
    margin:0 ;
    padding: 0;
    list-style-type: none;
   }

   li {
    display: inline-block;
    margin-right: 20px;
   }
   footer {
    background-color: black;
    padding: 10px 20px
   }