@media screen and (min-width: 480px){

  /*******************************
  TWO COLUMN LAYOUT
  *******************************/              
  #primary {
    width: 50%;
    float: left;
  }
  
  #secondary {
   width: 40%;
   float: right;
  }
  /*******************************
  PAGE: PORTFOLIO
  *******************************/              
  
  #gallery li {
    width: 28.3333%;
  }

  #gallery li:nth-child(4n){
    clear: left;
  }
  /*******************************
  PAGE: ABOUT
  *******************************/ 

.profile-photo{
  float:left;
  margin: 0 5% 80px 0;
}

}

@media screen and (min-width: 660px){
  /*******************************
  HEADER
  *******************************/ 
  nav{
    background: none;
    float: right;
    font-size: 1.125em;
    margin-right: 5%;
    text-align: right;
    width: 45%;
  }

  #logo {
    float: left;
    margin-left: 5%;
    text-align: left;
    width: 45%;
  }

  h1 {
      font-size: 2.5em;
  }

  h2 {
    font-size: 0.825em;
    margin-bottom: 20px;
  }

  header {
    border-bottom: 5px solid #599a68;
    margin-bottom: 60px;
  }

}