@media screen and (min-width: 480px) {
  /********
  TWO COLUMN LAYOUT
  *********/
  #primary {
    width: 50%;
    float: left;
  }
  
  #secondary {
    width:40%;
    float: right;
  }
  /********
   PAGE: PORTFOLIO
  *********/
  #gallery li {
    width: 28.3333333%;
  }
  /********
   PAGE: ABOUT
  *********/
  .profile-photo {
    float: left;
    margin: 0 5% 80px 0;
  }
}


@media screen and (min-width: 660px) {
  /********
   HEADER
  *********/ 
  nav {
    background: none;
    float: right;
    margin-right: 5%;
    text-align: right;
    width: 45%;
  }
  
  #logo{
    float: left;
    margin-left: 5%;
    text-align: left;
    width: 45%
  }

  h2 {
    margin-bottom: 20px;
  }
  
  header{
    border-bottom: 5px solid #1655ba;
    margin-bottom: 60px;
  }
}