body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  color: blanchedalmond;

  background: linear-gradient(#141e30, #243b55);
}
.periodic {
  position: relative;
  height: 100px;
  margin-right: 1px;
  text-shadow: none;
}

.periodic-row {
  clear: both;
  height: 10%;
}
.cell {
  float: left;
  position: relative;
  width: 3.55%;
  height: 70%;
}
.element {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 1px;
  right: 1px;
  box-sizing: border-box;
  box-shadow: 0px 0px 4px rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(0, 0, 0, 0.05);
  text-align: center;
  cursor: default;
  pointer-events: none;
  -webkit-transition: all 200ms ease;
  transition: all 200ms ease;
  background-color: rgba(0, 128, 128, 0.6);
}
.cell:hover .element {
  border-color: rgba(0, 0, 0, 0.1);
  -webkit-transform: scale(3, 3);
  -ms-transform: scale(3, 3);
  transform: scale(1.8, 1.8);
  z-index: 2;
  background-color: rgba(0, 128, 128, 0.9);
}
.at_num,
.at_details {
  position: absolute;
  font-size: 2px;
  color: rgba(255, 255, 255, 0.5);
  opacity: 0;
}
.at_num {
  top: 2px;
  right: 5px;
}
.symbol {
  position: absolute;
  top: 50%;
  left: 0px;
  right: 0px;
  margin-top: -4px;
  font-size: 2rem;
  line-height: 1;
  height: 6px;
  color: rgba(255, 255, 255, 0.9);
}
.at_details {
  bottom: 4px;
  left: 0px;
  right: 0px;
}
.cell:nth-child(-n + 2) .element,
.cell:nth-child(n + 13) .element {
  background-color: rgba(0, 160, 96, 0.6);
}
.cell:nth-child(1) .element,
.periodic-row:nth-child(2) .cell:nth-child(n + 14) .element,
.periodic-row:nth-child(3) .cell:nth-child(n + 15) .element,
.periodic-row:nth-child(4) .cell:nth-child(n + 16) .element,
.periodic-row:nth-child(5) .cell:nth-child(n + 17) .element {
  background-color: rgba(0, 192, 64, 0.6);
}
.periodic-row:nth-child(-n + 6) .cell:nth-child(18) .element {
  background-color: rgba(64, 192, 0, 0.6);
}
.periodic-row:nth-child(n + 9) .element {
  background-color: rgba(0, 96, 160, 0.6);
}
.cell:nth-child(-n + 2):hover .element,
.cell:nth-child(n + 13):hover .element {
  background-color: rgba(0, 160, 96, 0.9);
}
.cell:nth-child(1):hover .element,
.periodic-row:nth-child(2) .cell:nth-child(n + 14):hover .element,
.periodic-row:nth-child(3) .cell:nth-child(n + 15):hover .element,
.periodic-row:nth-child(4) .cell:nth-child(n + 16):hover .element,
.periodic-row:nth-child(5) .cell:nth-child(n + 17):hover .element {
  background-color: rgba(0, 192, 64, 0.9);
}
.periodic-row:nth-child(-n + 6) .cell:nth-child(18):hover .element {
  background-color: rgba(64, 192, 0, 0.9);
}
.periodic-row:nth-child(n + 9) .cell:hover .element {
  background-color: rgba(0, 96, 160, 0.9);
  background-color: #293241;
}
.cell:nth-child(1) .element {
  -webkit-transform-origin: 0 50%;
  -ms-transform-origin: 0 50%;
  transform-origin: 0 50%;
}
.cell:nth-child(18) .element {
  -webkit-transform-origin: 100% 50%;
  -ms-transform-origin: 100% 50%;
  transform-origin: 100% 50%;
}
.periodic-row:nth-child(10) .cell .element {
  -webkit-transform-origin: 50% 100%;
  -ms-transform-origin: 50% 100%;
  transform-origin: 50% 100%;
}
.periodic-row:nth-child(1) .cell:nth-child(1) .element {
  -webkit-transform-origin: 0 0;
  -ms-transform-origin: 0 0;
  transform-origin: 0 0;
}
.periodic-row:nth-child(1) .cell:nth-child(18) .element {
  -webkit-transform-origin: 100% 0;
  -ms-transform-origin: 100% 0;
  transform-origin: 100% 0;
}
.periodic-row:nth-child(10) .cell:nth-child(18) .element {
  -webkit-transform-origin: 100% 100%;
  -ms-transform-origin: 100% 100%;
  transform-origin: 100% 100%;
}
@media (min-width: 600px) {
  .periodic {
    height: 460px;
    margin-right: -2px;
  }
  .element {
    right: 2px;
    bottom: 2px;
  }
  .at_num,
  .at_details {
    font-size: 4px;
    opacity: 1;
  }
  .symbol {
    margin-top: -17px;
    font-size: 8px;
    font-weight: bold;
    line-height: 30px;
    height: 30px;
    color: rgba(255, 255, 255, 0.75);
    text-shadow: 0 0 4px rgba(255, 255, 255, 0.5);
  }
}
@media (min-width: 800px) {
  .periodic {
    height: 540px;
  }
  .symbol {
    font-size: 10px;
  }
}
@media (min-width: 992px) {
  .periodic {
    height: 680px;
  }
  .at_num,
  .at_details {
    font-size: 5px;
  }
  .symbol {
    font-size: 12px;
  }
}
@media (min-width: 1200px) {
  .periodic {
    height: 800px;
  }
  .at_num,
  .at_details {
    font-size: 6px;
  }
  .symbol {
    font-size: 15px;
  }
}
body {
  background-color: black;
  font-family: Arial;
  -webkit-transform: translateZ(0);
  -ms-transform: translateZ(0);
  transform: translateZ(0);
}
.periodic {
  position: relative;
  height: 200px;
  margin-right: 1px;
  text-shadow: none;
}
.periodic-row {
  clear: both;
  height: 10%;
}
.cell {
  float: left;
  position: relative;
  width: 5.55%;
  height: 100%;
}
.element {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 1px;
  right: 1px;
  box-sizing: border-box;
  box-shadow: 0px 0px 4px rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(0, 0, 0, 0.05);
  text-align: center;
  cursor: default;
  pointer-events: none;
  -webkit-transition: all 200ms ease;
  transition: all 200ms ease;
  background-color: rgba(0, 128, 128, 0.6);
}
.cell:hover .element {
  border-color: rgba(0, 0, 0, 0.1);
  -webkit-transform: scale(3, 3);
  -ms-transform: scale(3, 3);
  transform: scale(1.8, 1.8);
  z-index: 2;
  background-color: rgba(0, 128, 128, 0.9);
}
.at_num,
.at_details {
  position: absolute;
  font-size: 2px;
  color: rgba(255, 255, 255, 0.5);
  opacity: 0;
}
.at_num {
  top: 2px;
  right: 5px;
}
.symbol {
  position: absolute;
  top: 50%;
  left: 0px;
  right: 0px;
  margin-top: -4px;
  font-size: 2px;
  line-height: 1;
  height: 9px;
  color: rgba(255, 255, 255, 0.9);
}
.at_details {
  bottom: 4px;
  left: 0px;
  right: 0px;
}
.cell:nth-child(-n + 2) .element,
.cell:nth-child(n + 13) .element {
  background-color: rgba(0, 160, 96, 0.6);
}
.cell:nth-child(1) .element,
.periodic-row:nth-child(2) .cell:nth-child(n + 14) .element,
.periodic-row:nth-child(3) .cell:nth-child(n + 15) .element,
.periodic-row:nth-child(4) .cell:nth-child(n + 16) .element,
.periodic-row:nth-child(5) .cell:nth-child(n + 17) .element {
  background-color: rgba(0, 192, 64, 0.6);
}
.periodic-row:nth-child(-n + 6) .cell:nth-child(18) .element {
  background-color: rgba(64, 192, 0, 0.6);
}
.periodic-row:nth-child(n + 9) .element {
  background-color: rgba(0, 96, 160, 0.6);
}
.cell:nth-child(-n + 2):hover .element,
.cell:nth-child(n + 13):hover .element {
  background-color: rgba(0, 160, 96, 0.9);
}
.cell:nth-child(1):hover .element,
.periodic-row:nth-child(2) .cell:nth-child(n + 14):hover .element,
.periodic-row:nth-child(3) .cell:nth-child(n + 15):hover .element,
.periodic-row:nth-child(4) .cell:nth-child(n + 16):hover .element,
.periodic-row:nth-child(5) .cell:nth-child(n + 17):hover .element {
  background-color: rgba(0, 192, 64, 0.9);
}
.periodic-row:nth-child(-n + 6) .cell:nth-child(18):hover .element {
  background-color: rgba(64, 192, 0, 0.9);
}
.periodic-row:nth-child(n + 9) .cell:hover .element {
  background-color: rgba(0, 96, 160, 0.9);
}
.cell:nth-child(1) .element {
  -webkit-transform-origin: 0 50%;
  -ms-transform-origin: 0 50%;
  transform-origin: 0 50%;
}
.cell:nth-child(18) .element {
  -webkit-transform-origin: 100% 50%;
  -ms-transform-origin: 100% 50%;
  transform-origin: 100% 50%;
}
.periodic-row:nth-child(10) .cell .element {
  -webkit-transform-origin: 50% 100%;
  -ms-transform-origin: 50% 100%;
  transform-origin: 50% 100%;
}
.periodic-row:nth-child(1) .cell:nth-child(1) .element {
  -webkit-transform-origin: 0 0;
  -ms-transform-origin: 0 0;
  transform-origin: 0 0;
}
.periodic-row:nth-child(1) .cell:nth-child(18) .element {
  -webkit-transform-origin: 100% 0;
  -ms-transform-origin: 100% 0;
  transform-origin: 100% 0;
}
.periodic-row:nth-child(10) .cell:nth-child(18) .element {
  -webkit-transform-origin: 100% 100%;
  -ms-transform-origin: 100% 100%;
  transform-origin: 100% 100%;
}
@media (min-width: 600px) {
  .periodic {
    height: 460px;
    margin-right: -2px;
  }
  .element {
    right: 2px;
    bottom: 2px;
  }
  .at_num,
  .at_details {
    font-size: 8px;
    opacity: 1;
  }
  .symbol {
    margin-top: -17px;
    font-size: 8px;
    font-weight: bold;
    line-height: 30px;
    height: 30px;
    color: rgba(255, 255, 255, 0.75);
    text-shadow: 0 0 4px rgba(255, 255, 255, 0.5);
  }
}
@media (min-width: 800px) {
  .periodic {
    height: 540px;
  }
  .symbol {
    font-size: 10px;
  }
}
@media (min-width: 992px) {
  .periodic {
    height: 680px;
  }
  .at_num,
  .at_details {
    font-size: 5px;
  }
  .symbol {
    font-size: 12px;
  }
}
@media (min-width: 1200px) {
  .periodic {
    height: 800px;
  }
  .at_num,
  .at_details {
    font-size: 6px;
  }
  .symbol {
    font-size: 22px;
  }
}