index.css

/*https://codepen.io/jh3y/details/BVaGKP*/
* {
  box-sizing: border-box;
}
body,
html {
  align-items: center;
  background-color: #1f3a93;
  color: #fafafa;
  display: flex;
  flex-direction: column;
  font-family: "Arial", sans-serif;
  justify-content: center;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  position: relative;
}
svg {
  height: 100px;
  width: 100px;
}
input {
  opacity: 0;
}
label {
  cursor: pointer;
  height: 100px;
  width: 100px;
  z-index: 2;
}
input,
span,
label {
  left: calc(var(--col) * 100px);
  position: absolute;
  top: calc(var(--row) * 100px);
}
circle,
path {
  animation-fill-mode: forwards;
  animation-name: draw;
}
circle {
  animation-duration: 0.5s;
  stroke: #f62459;
}
path {
  animation-duration: 0.25s;
  stroke: #36dbd7;
}
button {
  cursor: pointer;
  position: absolute;
  bottom: 20px;
  padding: 8px 24px;
  border-radius: 4px;
  border: 0;
  background: #1f3a93;
  font-size: 0.75rem;
  color: #fafafa;
  filter: drop-shadow(0 5px 5px #000);
  transition: transform 0.1s, filter 0.1s;
}
button:hover {
  filter: drop-shadow(0 5px 4px #000);
  transform: translateY(1px);
}
button:active {
  transform: translateY(5px);
  filter: drop-shadow(0 0 0 transparent);
}
label svg {
  display: none;
  transform: translate3d(0, 0, 3px);
}
input:checked + label svg {
  display: block;
}
.o {
  transform: rotateY(180deg) rotate(-35deg);
}
.x path:nth-of-type(2) {
  animation-delay: 0.25s;
}
.board {
  height: 300px;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  transform-style: preserve-3d;
  width: 300px;
}
.board__line {
  height: 10px;
  left: calc(var(--x) * 100px);
  position: absolute;
  top: calc(var(--y) * 100px);
  width: 300px;
}
.board__line path {
  stroke: #fafafa;
}
.board__line--0,
.board__line--1 {
  transform: rotate(90deg) translate(-5px, 0);
  transform-origin: left center;
}
.board__line--2,
.board__line--3 {
  transform: translate(0, -50%);
}
.board__line--0 path {
  animation-delay: 0.25s;
}
.board__line--1 path {
  animation-delay: 0.5s;
}
.board__line--2 path {
  animation-delay: 0.75s;
}
.board__line--3 path {
  animation-delay: 1s;
}
.board__result {
  animation: fadeBg 0.25s 0.5s;
  animation-fill-mode: backwards;
  background: #1f3a93;
  display: none;
  height: 100%;
  left: 0;
  margin: 0;
  padding: 0;
  position: absolute;
  top: 0;
  transform: translate3d(0, 0, 4px);
  width: 100%;
}
.result__content {
  align-items: center;
  animation: flyIn 0.25s 0.75s;
  animation-fill-mode: backwards;
  background: #fafafa;
  border-radius: 10px;
  color: #1f3a93;
  display: flex;
  filter: drop-shadow(0 10px 10px #000);
  flex-direction: column;
  height: 100%;
  justify-content: center;
  left: 0;
  margin: 0;
  position: absolute;
  top: 0;
  width: 100%;
  z-index: 3;
}
.result__title {
  font-size: 1.5rem;
  font-weight: bolder;
  text-transform: uppercase;
}
.result__details {
  margin: 0;
}
.result__shield {
  animation: fadeBg 0.25s 0.5s;
  animation-fill-mode: backwards;
  background: #1f3a93;
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
  z-index: 2;
}
.result__emoji {
  font-size: 5rem;
}
.result__icon path:nth-of-type(1) {
  animation-delay: 1s;
}
.result__icon path:nth-of-type(2) {
  animation-delay: 1.4s;
}
.result__icon circle {
  animation-delay: 1s;
}
.result__firework-icon {
  animation: fly 0.75s 1s;
  animation-fill-mode: backwards;
  animation-timing-function: cubic-bezier(0, 0.64, 0.25, 1.01);
  font-size: 2rem;
  height: 2rem;
  left: 50%;
  margin-left: -1rem;
  margin-top: -1rem;
  opacity: 0;
  position: absolute;
  top: 50%;
  transform: rotate(calc(var(--r) * 1deg)) translateY(calc(var(--y) * -1px));
  width: 2rem;
}
.display {
  display: block;
}
/*:checked ~ label:nth-of-type(odd),
:checked ~ :checked ~ :checked ~ label:nth-of-type(odd),
:checked ~ :checked ~ :checked ~ :checked ~ :checked ~ label:nth-of-type(odd),
:checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ label:nth-of-type(odd),
:checked ~ :checked ~ label:nth-of-type(even),
:checked ~ :checked ~ :checked ~ :checked ~ label:nth-of-type(even),
:checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ label:nth-of-type(even),
:checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ label:nth-of-type(even) {
  transform: translate3d(0, 0, 2px);
}
:checked ~ label:nth-of-type(even),
:checked ~ :checked ~ :checked ~ label:nth-of-type(even),
:checked ~ :checked ~ :checked ~ :checked ~ :checked ~ label:nth-of-type(even),
:checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ label:nth-of-type(even),
:checked ~ :checked ~ label:nth-of-type(odd),
:checked ~ :checked ~ :checked ~ :checked ~ label:nth-of-type(odd),
:checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ label:nth-of-type(odd),
:checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ label:nth-of-type(odd) {
  transform: translate3d(0, 0, -1px);
}*/
/*:checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ :checked
  ~ .board__result--draw {
  display: block;
}*/
/*#x--0:checked ~ #x--1:checked ~ #x--2:checked ~ .board__result--x,
#x--3:checked ~ #x--4:checked ~ #x--5:checked ~ .board__result--x,
#x--6:checked ~ #x--7:checked ~ #x--8:checked ~ .board__result--x,
#x--0:checked ~ #x--3:checked ~ #x--6:checked ~ .board__result--x,
#x--1:checked ~ #x--4:checked ~ #x--7:checked ~ .board__result--x,
#x--2:checked ~ #x--5:checked ~ #x--8:checked ~ .board__result--x,
#x--0:checked ~ #x--4:checked ~ #x--8:checked ~ .board__result--x,
#x--2:checked ~ #x--4:checked ~ #x--6:checked ~ .board__result--x,
#o--0:checked ~ #o--1:checked ~ #o--2:checked ~ .board__result--o,
#o--3:checked ~ #o--4:checked ~ #o--5:checked ~ .board__result--o,
#o--6:checked ~ #o--7:checked ~ #o--8:checked ~ .board__result--o,
#o--0:checked ~ #o--3:checked ~ #o--6:checked ~ .board__result--o,
#o--1:checked ~ #o--4:checked ~ #o--7:checked ~ .board__result--o,
#o--2:checked ~ #o--5:checked ~ #o--8:checked ~ .board__result--o,
#o--0:checked ~ #o--4:checked ~ #o--8:checked ~ .board__result--o,
#o--2:checked ~ #o--4:checked ~ #o--6:checked ~ .board__result--o {
  display: block;
}*/
/*#x--0:checked
  ~ #x--1:checked
  ~ #x--2:checked
  ~ .board__result--x
  ~ .board__result--draw,
#x--3:checked
  ~ #x--4:checked
  ~ #x--5:checked
  ~ .board__result--x
  ~ .board__result--draw,
#x--6:checked
  ~ #x--7:checked
  ~ #x--8:checked
  ~ .board__result--x
  ~ .board__result--draw,
#x--0:checked
  ~ #x--3:checked
  ~ #x--6:checked
  ~ .board__result--x
  ~ .board__result--draw,
#x--1:checked
  ~ #x--4:checked
  ~ #x--7:checked
  ~ .board__result--x
  ~ .board__result--draw,
#x--2:checked
  ~ #x--5:checked
  ~ #x--8:checked
  ~ .board__result--x
  ~ .board__result--draw,
#x--0:checked
  ~ #x--4:checked
  ~ #x--8:checked
  ~ .board__result--x
  ~ .board__result--draw,
#x--2:checked
  ~ #x--4:checked
  ~ #x--6:checked
  ~ .board__result--x
  ~ .board__result--draw,
#o--0:checked
  ~ #o--1:checked
  ~ #o--2:checked
  ~ .board__result--o
  ~ .board__result--draw,
#o--3:checked
  ~ #o--4:checked
  ~ #o--5:checked
  ~ .board__result--o
  ~ .board__result--draw,
#o--6:checked
  ~ #o--7:checked
  ~ #o--8:checked
  ~ .board__result--o
  ~ .board__result--draw,
#o--0:checked
  ~ #o--3:checked
  ~ #o--6:checked
  ~ .board__result--o
  ~ .board__result--draw,
#o--1:checked
  ~ #o--4:checked
  ~ #o--7:checked
  ~ .board__result--o
  ~ .board__result--draw,
#o--2:checked
  ~ #o--5:checked
  ~ #o--8:checked
  ~ .board__result--o
  ~ .board__result--draw,
#o--0:checked
  ~ #o--4:checked
  ~ #o--8:checked
  ~ .board__result--o
  ~ .board__result--draw,
#o--2:checked
  ~ #o--4:checked
  ~ #o--6:checked
  ~ .board__result--o
  ~ .board__result--draw {
  display: none;
}*/
@-moz-keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}
@-webkit-keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}
@-o-keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}
@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}
@-moz-keyframes fadeBg {
  from {
    background: rgba(31, 58, 147, 0);
  }
}
@-webkit-keyframes fadeBg {
  from {
    background: rgba(31, 58, 147, 0);
  }
}
@-o-keyframes fadeBg {
  from {
    background: rgba(31, 58, 147, 0);
  }
}
@keyframes fadeBg {
  from {
    background: rgba(31, 58, 147, 0);
  }
}
@-moz-keyframes fly {
  0% {
    opacity: 0;
    transform: translateY(0);
  }
  5%,
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
@-webkit-keyframes fly {
  0% {
    opacity: 0;
    transform: translateY(0);
  }
  5%,
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
@-o-keyframes fly {
  0% {
    opacity: 0;
    transform: translateY(0);
  }
  5%,
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
@keyframes fly {
  0% {
    opacity: 0;
    transform: translateY(0);
  }
  5%,
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
@-moz-keyframes flyIn {
  from {
    transform: translateY(100%) scale(0);
  }
}
@-webkit-keyframes flyIn {
  from {
    transform: translateY(100%) scale(0);
  }
}
@-o-keyframes flyIn {
  from {
    transform: translateY(100%) scale(0);
  }
}
@keyframes flyIn {
  from {
    transform: translateY(100%) scale(0);
  }
}