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HTML

CSS

body {
  margin: 0;
  padding: 0;
  font-family: 'Poppins', sans-serif;
  background-color: #212121;
  transition: background-color 0.5s ease;
}

.container {
  margin: auto;
  color: hsl(0, 0%, 30%);
  font-weight: 900;
  font-size: 5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.toggle {
  width: 60px;
  height: 130px;
  background-color: hsl(0, 0%, 80%);
  border-radius: 1.7rem;
  padding: .25rem 0;
  cursor: pointer;
  display: flex;
  justify-content: center;
  transition: background-color 300ms 300ms;
}

.toggle__circle {
  width: 50px;
  height: 50px;
  background-color: transparent;
  border: 4px solid hsl(0, 0%, 100%);
  border-radius: 50%;
  margin-top: calc(130px - (.25rem * 2) - 50px);
  transition: margin 500ms ease-in-out, background-color 300ms ease-in-out;
}

#check:checked + .toggle > .toggle__circle {
  margin-top: 0;
}

#check:checked + .toggle {
  background-color: #079c00;
}

:not(#check:checked) + .toggle {
  background-color: #d11002;
}

.toggle-text {
  display: flex;
  flex-direction: column;
  line-height: .8;
}

JS