HTMLify

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

html {
  box-sizing: border-box;
  height: 100%;

}

*,
*::before,
*::after {
  box-sizing: inherit;
}

body {
  background: #151515;
  font-family: 'Lato', sans-serif;
  height: 100vh;
  display: grid;
  place-items: center;
}

.wrapper {
  width: 8.2rem;
}

.wrapper label {
  display: block;
  position: relative;
  height: 2em;
  padding-left: 3.5rem;
  margin-bottom: 1.75rem;
  cursor: pointer;
  font-size: 1.5rem;
  user-select: none;
  color: #fff;
}

.wrapper label:hover input:not(:checked)~.radio {
  opacity: 0.8;
}

.wrapper .label span {
  line-height: 1em;
}

.wrapper input {
  display: none;
}

.wrapper input:checked~.radio {
  background-color: #ff712a;
  transition: background 0.3s;
}

.wrapper input:checked~.radio::after {
  opacity: 1;
}

.wrapper input:checked~.label {
  color: #ff712a;
}

.wrapper input:checked~.label span {
  animation: bulge 0.5s forwards;
}

.wrapper input:checked~.label span:nth-child(1) {
  animation-delay: 0.025s;
}

.wrapper input:checked~.label span:nth-child(2) {
  animation-delay: 0.05s;
}

.wrapper input:checked~.label span:nth-child(3) {
  animation-delay: 0.075s;
}

.wrapper input:checked~.label span:nth-child(4) {
  animation-delay: 0.1s;
}

.wrapper input:checked~.label span:nth-child(5) {
  animation-delay: 0.125s;
}

.wrapper input:checked~.label span:nth-child(6) {
  animation-delay: 0.15s;
}

.radio {
  position: absolute;
  top: 0;
  left: 0;
  height: 2.5rem;
  width: 2.5rem;
  background: #c9ded6;
  border-radius: 50%;
  display: grid;
  place-items: center;
}

.radio::after {
  content: "";
  position: absolute;
  opacity: 0;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: #fff;
}

@keyframes bulge {
  50% {
    transform: rotate(4deg);
    font-size: 1.5em;
  }

  100% {
    transform: rotate(0);
    font-size: 1em;
  }
}