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JavaScript

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HTML 

              
                <div class="container final">
	<div class="letter F">F</div>
	<div class="letter l">l</div>
	<div class="letter i">i</div>
	<div class="letter p">p</div>
	<div class="for">for</div>
	<div class="gsap">GSAP</div>
</div>

<a href="https://greensock.com/"><img src="https://assets.codepen.io/16327/hero-logo.svg" class="logo" /></a>
!

CSS 

              
                * {
  box-sizing: border-box;
}

body {
  background: black;
  padding: 0;
  margin: 0;
  font-family: "Signika Negative", sans-serif, Arial;
  font-weight: 300;
  height: 100vh;
  overflow: hidden;
}
.container {
  display: flex;
  height: 100%;
  width: 100%;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}
.container.grid, .container.columns {
  align-content: stretch;
  align-items: stretch;
  flex-wrap: wrap;
}

.letter {
  text-align: center;
  color: black;
  font-size: 10vmax;
  font-weight: 400;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px 6px;
}
.container.grid .letter {
  flex-basis: 50%;
}
.container.columns .letter {
  flex-basis: 25%;
}
.for, .gsap {
  font-size: 5vmax;
  color: white;
}
.for {
  padding: 2px 1.6vmax;
  font-weight: 300;
  display: none;
}
.gsap {
  padding: 2px 0;
  font-weight: 600;
  display: none;
}
.container.final .for, .container.final .gsap {
  display: block;
}
.F {
  background: rgba(0, 188, 212, 0.7);
}
.l {
  background: rgba(40, 150, 255, 0.7);
}
.i {
  background: rgba(153, 80, 220, 0.7);
}
.p {
  background: rgba(90, 108, 225, 0.7);
}
.container.plain .letter {
  background: transparent;
  color: white;
  padding: 0;
}

.logo {
  position: fixed;
  width: 60px;
  bottom: 20px;
  right: 30px;
}
!

JS 

              
                gsap.registerPlugin(Flip);

let layouts = ["final", "plain", "columns", "grid"],
		container = document.querySelector(".container"),
		curLayout = 0; // index of the current layout

function nextState() {
  const state = Flip.getState(".letter, .for, .gsap", {props: "color,backgroundColor", simple: true}); // capture current state
  
  container.classList.remove(layouts[curLayout]); // remove old class
  curLayout = (curLayout + 1) % layouts.length;   // increment (loop back to the start if at the end)
  container.classList.add(layouts[curLayout]);    // add the new class

  Flip.from(state, { // animate from the previous state
    absolute: true,
    stagger: 0.07,
    duration: 0.7,
    ease: "power2.inOut",
    spin: curLayout === 0, // only spin when going to the "final" layout
    simple: true,
    onEnter: (elements, animation) => gsap.fromTo(elements, {opacity: 0}, {opacity: 1, delay: animation.duration() - 0.1}),
    onLeave: elements => gsap.to(elements, {opacity: 0})
  });

  gsap.delayedCall(curLayout === 0 ? 3.5 : 1.5, nextState);
}

gsap.delayedCall(1, nextState);
!
999px

Console