* {
  box-sizing: border-box;
}

body {
  height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  background: linear-gradient(90deg,#425F57 0%, #749F82 100%);
}

.skeuo__switch {
  display: none;
}

.skeuo__button {
  width: 6rem;
  background: linear-gradient(90deg, #444650 0%, #101113 100%);
  padding: .75rem 1.25rem .75rem 1rem;
  border-radius: 3rem;
  box-shadow: inset -2px 0 18px #212227,
              inset -14px 0 6px #43454F,
              inset 4px 0 6px #151619;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: .2s;
  height: 4rem;
}

.skeuo__circle {
  font-size: 18px;
  color: #FF4949;
}

.skeuo__line {
  transform: rotate(90deg);
  font-size: 22px;
  color: #7DCE13;
}

/* Button animation effects */
.skeuo__switch:checked ~ .skeuo__button {
  background: linear-gradient(90deg, #101113 0%, #444650 100%);
  box-shadow: inset -2px 0 18px #212227,
              inset -4px 0 6px #151619,
              inset 14px 0 6px #43454F;
  padding: .75rem 1rem .75rem 1.25rem;
}

.skeuo__switch:checked ~ .skeuo__button .skeuo__circle {
  font-size: 20px;
}

.skeuo__switch:checked ~ .skeuo__button .skeuo__line {
  font-size: 18px;
}