<form>
  <input type="radio" id="on" name="status" value="on" checked>
  <label for="on">On</label>
  <input type="radio" id="off" name="status" value="off">
  <label for="off">Off</label>
</form>

@import url("https://fonts.googleapis.com/css2?family=Montserrat&display=swap");

body,
html {
  height: 100%;
  display: grid;
}

body {
  font-family: "Montserrat", sans-serif;
}

form {
  margin: auto;
  display: flex;
  flex-direction: column;
  position: relative;
  padding-left: 10rem;
}

form:before {
  content: "";
  display: block;
  position: absolute;
  width: 7.5rem;
  height: 100%;
  border-radius: 99em;
  left: 0;
  top: 50%;
  border: 0.5rem solid #ccc;
  transform: translatey(-50%);
}

input {
  /* Code to hide the input */
  clip: rect(0 0 0 0);
  clip-path: inset(100%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

label {
  font-size: 8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-left: -1.125em;
  line-height: 1;
  cursor: pointer;
  position: relative;
}

label ~ label {
  margin-top: 1rem;
}

label::first-letter {
  color: transparent;
}

input:checked + label::first-letter {
  color: #000;
}