body {
  
  margin: 0;
/*
  width: 100vw;
  height: 100vh;
*/
  animation: bugfix infinite 1s;
  -webkit-animation: bugfix infinite 1s;
}

@keyframes bugfix {
  from {
    padding: 0;
  }
  to {
    padding: 0;
  }
}
@-webkit-keyframes bugfix {
  from {
    padding: 0;
  }
  to {
    padding: 0;
  }
}
#overlay-button {
  position: fixed;
  right: 1em;
  top: 1em;
  padding: 23px 11px;
  z-index: 5;
  cursor: pointer;
  user-select: none;
/*  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);*/
  background-color: #003557;
  opacity: 0.5;

	
}
#overlay-button span {
  height: 4px;
  width: 30px;
  border-radius: 2px;
  background-color: white;
  position: relative;
  display: block;
  transition: all .2s ease-in-out;	
}
#overlay-button span:before {
  top: -10px;
  visibility: visible;
}
#overlay-button span:after {
  top: 10px;
}
#overlay-button span:before, #overlay-button span:after {
  height: 4px;
  width: 30px;
  border-radius: 2px;
  background-color: white;
  position: absolute;
  content: "";
  transition: all .2s ease-in-out;
}
#overlay-button:hover span, #overlay-button:hover span:before, #overlay-button:hover span:after {
  background: white;
}

input[type=checkbox] {
  display: none;
}

input[type=checkbox]:checked ~ #overlay {
  visibility: visible;
}

input[type=checkbox]:checked ~ #overlay-button:hover span, input[type=checkbox]:checked ~ #overlay-button span {
  background: transparent;
}
input[type=checkbox]:checked ~ #overlay-button span:before {
  transform: rotate(45deg) translate(7px, 7px);
  opacity: 1;
}
input[type=checkbox]:checked ~ #overlay-button span:after {
  transform: rotate(-45deg) translate(7px, -7px);
}

#overlay {
  height: 100vh;
  width: 100vw;
  background: #003557;
  z-index: 2;
  visibility: hidden;
  position: fixed;
}
#overlay.active {
  visibility: visible;
}
#overlay ul {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  text-align: center;
  height: 100vh;
  padding-left: 0;
  list-style-type: none;
}
#overlay ul li {
  padding: 1em;
}
#overlay ul li a {
  color: white;
  text-decoration: none;
  font-size: 6vw;
}
#overlay ul li a:hover {
  color: white;
}