.gnav {
  position: relative;
  height: 30px;
  overflow: hidden;
}
.gnav li {
  float: left;
/*  width: 200px;*/
  width: calc(1000px / 6);
  height: 30px;
  line-height: 30px;
  border-right: 1px solid #000;
  margin: 0;
  padding: 0;
  color: #A8A8A8;
  background-color: #333;
  text-align: center;
  font-size: 0.75em;
}
.gnav li:last-child {
  border-right: none !important;
}
.gnav li a {
  display: block;
  width: 100%;
  height: 100%;
}
.gnav li a:link, .gnav li a:visited {
  color: #A8A8A8;
  background-color: #333;
}
.gnav li a:hover, .gnav li a:active {
  color: #FFF;
  background-color: #666;
}
.gnav li.current {
  color: #FFF;
  background-color: #666;
}
.gnav li.dpno {
  display: none;
}
@media (max-width: 640px) {
.gnav {
  position: relative;
  height: auto;
  overflow: auto;
}
.gnav li {
  float: none;
  display: block;
  width: 100%;
  height: auto;
  border-right: none;
  text-align: left;
}
.gnav li:last-child {
  width: 100% !important;
  border-right: none;
}
.gnav li a {
  display: block;
  width: 100%;
  height: 100%;
}
.gnav li a:hover, .gnav li a:active {
  color: #FFF;
  background-color: #666;
}
.gnav li.dpno {
  display: block;
}
}