html, body {
  margin: 0;
  padding: 0;
  background-color: #2d3142;
  font-family: Garamond;
}
.container {
  text-align: center;
  line-height: 48px;
  position: absolute;
  z-index: 3;
  left: 50%;
  top: 50%;
  transform: translateX(-50%) translateY(-50%);
}
.elem {
  display: block;
  text-align: center;
  line-height: 30px;
  font-size: 21px;
  position: absolute;
  border-radius: 4px;
  z-index: 3;
  padding: 10px 15px;
  transition: background-color 0.2s;
}
.level0 {
  background-color: #6290c3;
  color: #2d3142;
  font-style: bold;
  transition: all 0.5s;
}
.level0:hover {
  background-color: #4e739c;
  border-radius: 10px;
  transition: all 0.2s;
  cursor: pointer;
}
.level1 {
  background-color: #b0d7ff;
  color: #2d3142;
  transition: all 0.5s;
  padding: 10px 18px;
  transition: background-color 0.2s, border-radius: 0.2s;
  /*color: white;
  background: rgba(0,0,0,0);*/
}
.level1:hover {
  transition: background-color 0.2s, border-radius 0.2s;
  background-color: #7b96b2;
  border-radius: 10px;
  cursor: pointer;
}
.line {
  transform-origin: 0 0;
  position: absolute;
  border: #adacb5 1px solid;
  height: 0px;
  transition: all 0.5s;
  z-index: 1;
}
.hiddenLevel1 {
  z-index: 1;
  top: 50% !important;
  left: 50% !important;
  opacity: 0;
  transform: translateX(-50%) translateY(-50%) rotate(180deg);
  transition: all 0.5s;
}
.hiddenLevel1:hover {
  cursor: auto;
}
.hiddenLine {
  /* !important because width was originally set by js */
  width: 0 !important;
  border: 0 rgba(0, 0, 0, 0) solid;
  transition: all 0.4s;
}
.level2 {
  z-index: 1;
  white-space: nowrap;
  color: #2d3142;
  padding: 4px 8px;
  background-color: #dfefff;
  transition: all 0.5s;
}
.level2:hover {
  background-color: #80bfff;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s;
}
.hiddenLevel2 {
  opacity: 0;
  transform: rotate(180deg);
}
.hiddenLevel2:hover {
  cursor: default;
}