body {
  background: #F5F5F5;
}

.container {
  position: absolute;
  width: 100%;
  height: 100%;
  text-align: center;
  top: 50px;
  left: 0;
  margin: 0 auto;
  z-index: 19999;
}
.container a {
  display: inline-block;
  position: relative;
  text-align: center;
  color: #000000;
  text-decoration: none;
  overflow: hidden;
  top: 5px;
}
.container a:after {
  content: "";
  position: absolute;
  background: #000000;
  height: 2px;
  width: 0%;
  -webkit-transform: translateX(-50%);
          transform: translateX(-50%);
  left: 50%;
  bottom: 0;
  -webkit-transition: 0.35s ease;
  transition: 0.35s ease;
}
.container a:hover:after, .container a:focus:after, .container a:active:after {
  width: 100%;
}

.button_container {
  position: fixed;
  top: 70px;
  right: 2%;
  height: 27px;
  width: 35px;
  cursor: pointer;
  z-index: 20000;
  -webkit-transition: opacity 0.25s ease;
  transition: opacity 0.25s ease;
}
.button_container:hover {
  opacity: 0.7;
}
.button_container.active .top {
  -webkit-transform: translateY(11px) translateX(0) rotate(45deg);
          transform: translateY(11px) translateX(0) rotate(45deg);
  background: #000000;
}
.button_container.active .middle {
  opacity: 0;
  background: #2fd5ff;
}
.button_container.active .bottom {
  -webkit-transform: translateY(-11px) translateX(0) rotate(-45deg);
          transform: translateY(-11px) translateX(0) rotate(-45deg);
  background: #000000;
}
.button_container span {
  background: #2fd5ff;
  border: none;
  height: 5px;
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
  -webkit-transition: all 0.35s ease;
  transition: all 0.35s ease;
  cursor: pointer;
}
.button_container span:nth-of-type(2) {
  top: 11px;
}
.button_container span:nth-of-type(3) {
  top: 22px;
}

.overlay {
  position: fixed;
  top: 50px;
  right: 0;
  width: 200px;
  height: 100%;
  background: #e0ebf0;
  opacity: 0.98;
  visibility: hidden;
  -webkit-transform: translateX(100%);
          transform: translateX(100%);
  -webkit-transition: opacity 0.4s ease, visibility 0.4s ease, -webkit-transform 0.4s ease;
  transition: opacity 0.4s ease, visibility 0.4s ease, -webkit-transform 0.4s ease;
  transition: transform 0.4s ease, opacity 0.4s ease, visibility 0.4s ease;
  transition: transform 0.4s ease, opacity 0.4s ease, visibility 0.4s ease, -webkit-transform 0.4s ease;
  opacity: 0;
  overflow: hidden;
  z-index: 19998;
  padding-left: 30px;
}
.overlay.open {
  visibility: visible;
  -webkit-transform: translateX(0);
          transform: translateX(0);
  opacity: 0.98;
}
.overlay nav {
  position: relative;
  height: 100%;
  top: 100px;
  font-size: min(3.5vw, 16px);
  font-weight: 400;
  text-align: left;
  padding-right: 30px;
}
.overlay nav strong {
  color: #018fe2;
}
.overlay ul {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  display: inline-block;
  width: 100%;
}
.overlay ul li {
  width: 100%;
  display: block;
  height: 6.25%;
  min-height: 30px;
  position: relative;
  opacity: 0;
  -webkit-animation: fadeInRight 0.5s ease forwards;
          animation: fadeInRight 0.5s ease forwards;
  -webkit-animation-delay: 0.35s;
          animation-delay: 0.35s;
}
.overlay ul li.strong {
  margin: 5px -35px 5px -20px !important;
  padding-left: 20px;
  width: calc(100% + 35px) !important;
  border-top: solid 1px #018fe2;
  border-bottom: dotted 1px #018fe2;
  padding-top: 3px;
  height: 30px;
}
.overlay ul li a {
  display: block;
  position: relative;
  color: #000000;
  text-decoration: none;
  overflow: hidden;
}
.overlay ul li a:hover:after, .overlay ul li a:focus:after, .overlay ul li a:active:after {
  width: 100%;
}
.overlay ul li a:after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 100%;
  width: 0%;
  -webkit-transform: translateX(100%);
          transform: translateX(100%);
  height: 1px;
  background: #000000;
  -webkit-transition: 0.35s;
  transition: 0.35s;
}

@-webkit-keyframes fadeInRight {
  0% {
    opacity: 0;
    left: 20%;
  }
  100% {
    opacity: 1;
    left: 0;
  }
}

@keyframes fadeInRight {
  0% {
    opacity: 0;
    left: 20%;
  }
  100% {
    opacity: 1;
    left: 0;
  }
}
@media only screen and (min-width: 641px) {
  .overlay {
    top: 57px;
  }
}