ul.grid-nav {
  list-style: none;
  font-size: .85em;
  font-weight: 200;
  text-align: center;
  background-color: blue;
}
ul.grid-nav li {
  display: inline-block;


}
ul.grid-nav li a {
  display: inline-block;
  background: #999;
  color: #fff;
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 4px;
  -moz-border-radius: 4px;
  -webkit-border-radius: 4px;


}
ul.grid-nav li a:hover {
  background: #7b0;
}
ul.grid-nav li a.active {
  background: #333;
}
.grid-container {
  display: none;
}
/* ----- Image grids ----- */
ul.rig {
  list-style: none;
  font-size: 0px;
  margin-left: -6.1%; /* should match li left margin */
}
ul.rig li {
  display: inline-block;
  padding-left: 5%;
  padding-right: 5%;
  padding-top: 1%;
  margin: 0 0 2.5% 2.5%;
  background: #fff;
  border: 0px solid #ddd;
  font-size: 16px;
  font-size: 1rem;
  vertical-align: top;
  box-shadow: 0 0 0px #ddd;
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
}
ul.rig li img {
  max-width: 100%;
  height: auto;
  margin: 0 0 10px;
}
ul.rig li h3 {
  margin: 0 0 5px;
}
ul.rig li p {
  font-size: .9em;
  line-height: 1.5em;
  color: #999;
}
/* class for 2 columns */
ul.rig.columns-2 li {
  width: 47.5%; /* this value + 2.5 should = 50% */
}
/* class for 3 columns */
ul.rig.columns-3 li {
  width: 30.83%; /* this value + 2.5 should = 33% */
}
/* class for 4 columns */
ul.rig.columns-4 li {
  width: 22.5%; /* this value + 2.5 should = 25% */
}

@media (max-width: 1199px) {
  .container {
    width: auto;
    padding: 0 10px;
  }
}

@media (max-width: 480px) {
  ul.grid-nav li {
    display: block;
    margin: 0 0 5px;
  }
  ul.grid-nav li a {
    display: block;
  }
  ul.rig {
    margin-left: 0;
  }
  ul.rig li {
    width: 100% !important; /* over-ride all li styles */
    margin: 0 0 20px;
  }
}