nav#menu ul {
  display: flex;
  }

nav#menu ul li {
  display: block;
  position: relative;
  }

nav#menu ul li a {
  display: block;
  font-family: "Raleway", sans-serif;
  font-weight: 600;
  color: #646254;
  text-align: center;
  text-transform: uppercase;
  }

a.visited {
  color: #646254 !important;
  text-decoration: none !important;
  cursor: default !important;
  }

@media screen and (min-width: 768px) {
nav#responsive {
  display: none;
  }

nav#menu ul li a {
  -webkit-transition: 0.4s linear;
  -moz-transition: 0.4s linear;
  -o-transition: 0.4s linear;
  transition: 0.4s linear;
  }

nav#menu ul li a:hover {
  background-color: transparent;
  color: #990000;
  }
}

@media only screen and (min-width: 481px) {
nav#menu ul li {
  border-right: 1px solid #999685;
  padding: 2px 12px;
  }

nav#menu ul li:last-of-type {
  border-right: 0;
  padding-right: 0;
  }
}

@media only screen and (min-width: 320px) and (max-width: 767px) {
nav#responsive {
  display: block;
  background-color: transparent;
  z-index: 9999;
  }

button#nav-icon {
  position: relative;
  width: 40px;
  height: 20px;
  background-color: transparent;
  outline: 0;
  margin: 5px;
  cursor: pointer;
  }

button#nav-icon::-moz-focus-inner {
  border: 1px dotted transparent;
  }
  
button#nav-icon span {
  display: block;
  position: absolute;
  height: 2px;
  width: 100%;
  background-color: #646254;
  opacity: 1;
  left: 0;
  -webkit-transform: rotate(0deg);
  -moz-transform: rotate(0deg);
  -o-transform: rotate(0deg);
  transform: rotate(0deg);
  -webkit-transition: .25s ease-in-out;
  -moz-transition: .25s ease-in-out;
  -o-transition: .25s ease-in-out;
  transition: .25s ease-in-out;
  }

button#nav-icon span:nth-child(1) {
  top: 0px;
  width: 40px;
  }

button#nav-icon span:nth-child(2) {
  top: 9px;
  width: 30px;
  }

button#nav-icon span:nth-child(3) {
  top: 18px;
  width: 20px;
  }

button#nav-icon.open span:nth-child(1) {
  top: 9px;
  width: 30px;
  -webkit-transform: rotate(135deg);
  -moz-transform: rotate(135deg);
  -o-transform: rotate(135deg);
  transform: rotate(135deg);
  }

button#nav-icon.open span:nth-child(2) {
  opacity: 0;
  left: -80px;
  }

button#nav-icon.open span:nth-child(3) {
  top: 9px;
  width: 30px;
  -webkit-transform: rotate(-135deg);
  -moz-transform: rotate(-135deg);
  -o-transform: rotate(-135deg);
  transform: rotate(-135deg);
  }

nav#menu {
  display: none;
  position: absolute;
  top: 90px;
  right: 0;
  width: 100%;
  height: 100vh;
  background-color: #f5f4f0;
  z-index: 9999;
  }

nav#menu ul {
  justify-content: center;
  margin-top: 40px;
  }

nav#menu ul li a:hover {
  text-decoration: none;
  }
}
 
@media only screen and (min-width: 320px) and (max-width: 480px) {
nav#menu ul {
  flex-direction: column;
  }

nav#menu ul li {
  padding: 10px 0;
  }

nav#menu ul li:first-of-type {
  padding-top: 0;
  }

nav#menu ul li a {
  font-size: 1.25em;
  }
}