body {
  background-color: #848fa3;
}
  h1 {
  text-align: center;
  }
  h3 {
  font-size: 15px;
  }
    nav {
      line-height:;
      background-color:;
      width:125px;
      display: inline-block;
      vertical-align: top;
    }
      li {
        text-align: left;
        list-style-type: none;
      }
        a {
          color: green;
        }
  section {
    margin-left: 170px;
    margin-top: -170px;
  }
    section img {
      text-align: center;
      width: 400px;
    }
      article {
        border-width: 5px;
        border-color: green;
      }
      aside {
        margin-left: 600px;
        margin-top: -400px;
      }
      aside a {
        color: blue;
      }
      footer {
        margin-top: 300px;
      }