body {
    background-color: #fff;
    color: #333;
    margin: 0;
    font: 1.2em / 1.2 Arial, Helvetica, sans-serif;
  }

  img {
      max-width: 100%;
      display: block;
  }
  
  .logo {
    font-size: 200%;
    padding: 50px 20px;
    margin: 0 auto;
    max-width: 980px;
    text-align: center;
    letter-spacing: .1em;
  }
  
  .grid {
    display: flex;
    margin: 0 auto;
    padding: 0 20px;
    max-width: 980px;
    flex: auto;
  }
  
  nav {
    background-color: #000;
    padding: .5em;
  }
  
  nav ul {
    display: flex;
    margin: 0;
    padding: 0;
    list-style: none;
    flex: auto;

  }

  nav li {
    display: flex;
    flex: auto;
  }
  
  nav a {
    margin: auto;
    display: block;
    color: #fff;
    text-decoration: none;
    padding: .5em 1em;
    background-color: #000;
    text-align: center;
    border: solid 1px #000;
  }

  nav a:hover {
    background-color: #fff;
    color: #000;
  }
  
  .photos {
    display: grid;
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .photos li:nth-child(2n+1) {
    grid-column: 1 / 2;
  }
  
  .photos li:nth-child(2n) {
    grid-column: 2 / 3;
  }


  .feature {
      width: 200px;
      float: left;
      margin-right: 1em;
  }