<input type="radio" id="fat" name="fatfit">
<input type="radio" id="fit" name="fatfit">
<div>
  GET F<span>A<span>A</span><span>I</span></span>T
</div>
<div>
  <label for="fat">🍕</label>
  <label for="fit">💪🏼</label>
</div>

$spinTime: 3;
html, body { height: 100%; }
* { user-select: none; }
body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: 'Raleway', sans-serif;
  font-size: 72px;
  input {
    display: none;
    + div > span {
      display: inline-block;
      position: relative;
      white-space: nowrap;
      color: rgba(#fff, 0);
      transition: all 0.5s ease-in-out;
      span {
        display: inline-block;
        position: absolute;
        left: 50%;
        text-align: center;
        color: rgba(#000, 1);
        transform: translateX(-50%);
        transform-origin: left;
        transition: all 0.5s ease-in-out;
        &:first-of-type {
          transform: rotateY(0deg) translateX(-50%);
        }
        &:last-of-type {
          transform: rotateY(0deg) translateX(0%) scaleX(0.75) skew(23deg,0deg);
        }
      }
    }
    &#fat:checked ~ div > span span {
      &:first-of-type {
        transform: rotateY(0deg) translateX(-50%);
      }
      &:last-of-type {
        transform: rotateY(0deg) translateX(0%) scaleX(0.75) skew(23deg,0deg);
      }
    }
    &#fit:checked ~ div > span {
      margin: 0 -10px;
      span {
        &:first-of-type {
          transform: rotateY(90deg) translateX(-50%);
        }
        &:last-of-type {
          transform: rotateY(0deg) translateX(-50%) scaleX(1) skew(0deg,0deg);
        }
      }
    }
    + div + div {
      width: 280px;
      margin-top: 10px;
      label {
        display: block;
        padding: 20px 10px;
        text-align: center;
        transition: all 0.15s ease-in-out;
        background: #fff;
        border-radius: 10px;
        box-sizing: border-box;
        width: 48%;
        font-size: 64px;
        cursor: pointer;
        &:first-child {
          float: left;
          box-shadow:
            inset 0 0 0 4px #1597ff,
            0 15px 15px -10px rgba(darken(#1597ff, 10%), 0.375);
        }
        &:last-child { float: right; }
      }
    }
    &#fat:checked ~ div + div label {
      &:first-child {
        box-shadow:
          inset 0 0 0 4px #1597ff,
          0 15px 15px -10px rgba(darken(#1597ff, 10%), 0.375);
      }
      &:last-child {
        box-shadow:
          inset 0 0 0 0px #1597ff,
          0 10px 15px -20px rgba(#1597ff, 0);
      }
    }
    &#fit:checked ~ div + div label {
      &:first-child {
        box-shadow:
          inset 0 0 0 0px #1597ff,
          0 10px 15px -20px rgba(#1597ff, 0);
      }
      &:last-child {
        box-shadow:
          inset 0 0 0 4px #1597ff,
          0 15px 15px -10px rgba(darken(#1597ff, 10%), 0.375);
      }
    }
  }
}