* {
  margin: 0;
  padding: 0; 
}

/* Icon 1 */

#nav-icon1, #nav-icon2, #nav-icon3, #nav-icon4 {
  width: 40px;
  height: 45px;
  position: relative;
  margin: 0;
  -webkit-transform: rotate(0deg);
  -moz-transform: rotate(0deg);
  -o-transform: rotate(0deg);
  transform: rotate(0deg);
  -webkit-transition: .5s ease-in-out;
  -moz-transition: .5s ease-in-out;
  -o-transition: .5s ease-in-out;
  transition: .5s ease-in-out;
  cursor: pointer;
  float: right;
  z-index: 101;
}

#nav-icon1 span, #nav-icon3 span, #nav-icon4 span {
  display: block;
  position: absolute;
  height: 3px;
  width: 100%;
  background: #fff;
  border-radius: 3px;
  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;
}

#nav-icon1 span:nth-child(1) {
  top: 0px;
}

#nav-icon1 span:nth-child(2) {
  top: 10px;
}

#nav-icon1 span:nth-child(3) {
  top: 20px;
}

#nav-icon1.open span:nth-child(1) {
  top: 18px;
  -webkit-transform: rotate(135deg);
  -moz-transform: rotate(135deg);
  -o-transform: rotate(135deg);
  transform: rotate(135deg);
}

#nav-icon1.open span:nth-child(2) {
  opacity: 0;
  left: -60px;
}

#nav-icon1.open span:nth-child(3) {
  top: 18px;
  -webkit-transform: rotate(-135deg);
  -moz-transform: rotate(-135deg);
  -o-transform: rotate(-135deg);
  transform: rotate(-135deg);
}

/* OVERLAY */

#FsNav {
  height: 0;
  width: 100%;
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  background-color: rgb(0,0,0);
  background-color: rgba(0,0,0, 0.9);
  overflow-x: hidden;
  transition: 0.5s;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
}

.top-menu #FsNav ul li {
  display: block;
  text-align: center;
}

.top-menu #FsNav ul li a {
  font-size: 60px;
  line-height: 80px;
  font-family: Tungsten-Medium;
  color: #fff;
}

.top-menu #FsNav ul li a:hover {
  color: #ffcc33;
}

.opacity {
  opacity: 1!important;
  height: 100%!important;
}