HTMLify

@import url(https://fonts.googleapis.com/css?family=Roboto:400,300,500,700);

* {
  margin: 0;
  padding: 0;
}

::selection {
  background: none;
}

body {
  background: #151515;
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  color: #fff;
  height: 100vh;
  display: grid;
  place-items: center;
}

ul {
  list-style-type: none;
}

li {
  position: relative;
  padding: 10px;
  padding-left: 40px;
  height: 30px;
}

input[type="radio"] {
  opacity: 0;
  appearance: none;
  width: 100%;
  height: 30px;
  position: absolute;
  left: 0;
  top: calc(50% - 15px);
  cursor: pointer;
}

label::before {
  content: "";
  width: 15px;
  height: 15px;
  background: #fff;
  position: absolute;
  left: 7px;
  top: calc(50% - 13px);
  border-radius: 50%;
}

.bullet {
  position: relative;
  width: 25px;
  height: 25px;
  left: -3px;
  top: 2px;
  border: 5px solid #fff;
  opacity: 0;
  border-radius: 50%;
}

input[type="radio"]:checked~.bullet {
  position: absolute;
  opacity: 1;
  animation-name: explode;
  animation-duration: 0.350s;
}

.line {
  position: absolute;
  width: 10px;
  height: 2px;
  background-color: #fff;
  opacity: 0;
}

.line.zero {
  left: 11px;
  top: -21px;
  transform: translateY(20px);
  width: 2px;
  height: 10px;
}

.line.one {
  right: -7px;
  top: -11px;
  transform: rotate(-55deg) translate(-9px);
}

.line.two {
  right: -20px;
  top: 11px;
  transform: translate(-9px);
}

.line.three {
  right: -8px;
  top: 35px;
  transform: rotate(55deg) translate(-9px);
}

.line.four {
  left: -8px;
  top: -11px;
  transform: rotate(55deg) translate(9px);
}

.line.five {
  left: -20px;
  top: 11px;
  transform: translate(9px);
}

.line.six {
  left: -8px;
  top: 35px;
  transform: rotate(-55deg) translate(9px);
}

.line.seven {
  left: 11px;
  bottom: -21px;
  transform: translateY(-20px);
  width: 2px;
  height: 10px;
}

input[type="radio"]:checked~.bullet .line.zero {
  animation-name: drop-zero;
  animation-delay: 0.100s;
  animation-duration: 0.9s;
  animation-fill-mode: forwards;
}

input[type="radio"]:checked~.bullet .line.one {
  animation-name: drop-one;
  animation-delay: 0.100s;
  animation-duration: 0.9s;
  animation-fill-mode: forwards;
}

input[type="radio"]:checked~.bullet .line.two {
  animation-name: drop-two;
  animation-delay: 0.100s;
  animation-duration: 0.9s;
  animation-fill-mode: forwards;
}

input[type="radio"]:checked~.bullet .line.three {
  animation-name: drop-three;
  animation-delay: 0.100s;
  animation-duration: 0.9s;
  animation-fill-mode: forwards;
}

input[type="radio"]:checked~.bullet .line.four {
  animation-name: drop-four;
  animation-delay: 0.100s;
  animation-duration: 0.9s;
  animation-fill-mode: forwards;
}

input[type="radio"]:checked~.bullet .line.five {
  animation-name: drop-five;
  animation-delay: 0.100s;
  animation-duration: 0.9s;
  animation-fill-mode: forwards;
}

input[type="radio"]:checked~.bullet .line.six {
  animation-name: drop-six;
  animation-delay: 0.100s;
  animation-duration: 0.9s;
  animation-fill-mode: forwards;
}

input[type="radio"]:checked~.bullet .line.seven {
  animation-name: drop-seven;
  animation-delay: 0.100s;
  animation-duration: 0.9s;
  animation-fill-mode: forwards;
}

@keyframes explode {
  0% {
    opacity: 0;
    transform: scale(10);
  }

  60% {
    opacity: 1;
    transform: scale(0.5);
  }

  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes drop-zero {
  0% {
    opacity: 0;
    transform: translateY(20px);
    height: 10px;
  }

  20% {
    opacity: 1;
  }

  100% {
    transform: translateY(-2px);
    height: 0px;
    opacity: 0;
  }
}

@keyframes drop-one {
  0% {
    opacity: 0;
    transform: rotate(-55deg) translate(-20px);
    width: 10px;
  }

  20% {
    opacity: 1;
  }

  100% {
    transform: rotate(-55deg) translate(9px);
    width: 0px;
    opacity: 0;
  }
}

@keyframes drop-two {
  0% {
    opacity: 0;
    transform: translate(-20px);
    width: 10px;
  }

  20% {
    opacity: 1;
  }

  100% {
    transform: translate(9px);
    width: 0px;
    opacity: 0;
  }
}

@keyframes drop-three {
  0% {
    opacity: 0;
    transform: rotate(55deg) translate(-20px);
    width: 10px;
  }

  20% {
    opacity: 1;
  }

  100% {
    transform: rotate(55deg) translate(9px);
    width: 0px;
    opacity: 0;
  }
}

@keyframes drop-four {
  0% {
    opacity: 0;
    transform: rotate(55deg) translate(20px);
    width: 10px;
  }

  20% {
    opacity: 1;
  }

  100% {
    transform: rotate(55deg) translate(-9px);
    width: 0px;
    opacity: 0;
  }
}

@keyframes drop-five {
  0% {
    opacity: 0;
    transform: translate(20px);
    width: 10px;
  }

  20% {
    opacity: 1;
  }

  100% {
    transform: translate(-9px);
    width: 0px;
    opacity: 0;
  }
}

@keyframes drop-six {
  0% {
    opacity: 0;
    transform: rotate(-55deg) translate(20px);
    width: 10px;
  }

  20% {
    opacity: 1;
  }

  100% {
    transform: rotate(-55deg) translate(-9px);
    width: 0px;
    opacity: 0;
  }
}

@keyframes drop-seven {
  0% {
    opacity: 0;
    transform: translateY(-20px);
    height: 10px;
  }

  20% {
    opacity: 1;
  }

  100% {
    transform: translateY(2px);
    height: 0px;
    opacity: 0;
  }
}