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HTML

              
                <p id="text">Converting CSS3 Animations and Transitions to a GSAP Timeline<br>CSS3 Animation/ Transitions Only Demo Found <a href="https://codepen.io/NobodyRocks/pen/qzfoc/" target="_blank">Here</a></p>

<div id="container">
  <p><a id="red" href="javascript:;">GLOW 1</a></p>
  <p><a id="blue" href="javascript:;">GLOW 2</a></p>
  <p><a id="yellow" href="javascript:;">GLOW 3</a></p>
  <p><a id="green" href="javascript:;">GLOW 4</a></p>
  <p><a id="orange" href="javascript:;">GLOW 5</a></p>
  <p><a id="violet" href="javascript:;">GLOW 6</a></p>
</div>
              
            
!

CSS

              
                /*setup*/
@font-face {
  font-family: 'Monoton';
  font-style: normal;
  font-weight: 400;
  src: local('Monoton'), local('Monoton-Regular'), url(http://themes.googleusercontent.com/static/fonts/monoton/v4/AKI-lyzyNHXByGHeOcds_w.woff) format('woff');
}

@font-face {
  font-family: 'Iceland';
  font-style: normal;
  font-weight: 400;
  src: local('Iceland'), local('Iceland-Regular'), url(http://themes.googleusercontent.com/static/fonts/iceland/v3/F6LYTZLHrG9BNYXRjU7RSw.woff) format('woff');
}

@font-face {
  font-family: 'Pacifico';
  font-style: normal;
  font-weight: 400;
  src: local('Pacifico Regular'), local('Pacifico-Regular'), url(http://themes.googleusercontent.com/static/fonts/pacifico/v5/yunJt0R8tCvMyj_V4xSjafesZW2xOQ-xsNqO47m55DA.woff) format('woff');
}

@font-face {
  font-family: 'PressStart';
  font-style: normal;
  font-weight: 400;
  src: local('Press Start 2P'), local('PressStart2P-Regular'), url(http://themes.googleusercontent.com/static/fonts/pressstart2p/v2/8Lg6LX8-ntOHUQnvQ0E7o3dD2UuwsmbX3BOp4SL_VwM.woff) format('woff');
}

@font-face {
  font-family: 'Audiowide';
  font-style: normal;
  font-weight: 400;
  src: local('Audiowide'), local('Audiowide-Regular'), url(http://themes.googleusercontent.com/static/fonts/audiowide/v2/8XtYtNKEyyZh481XVWfVOj8E0i7KZn-EPnyo3HZu7kw.woff) format('woff');
}

@font-face {
  font-family: 'Vampiro One';
  font-style: normal;
  font-weight: 400;
  src: local('Vampiro One'), local('VampiroOne-Regular'), url(http://themes.googleusercontent.com/static/fonts/vampiroone/v3/Ho2Xld8UbQyBA8XLxF1_NYbN6UDyHWBl620a-IRfuBk.woff) format('woff');
}


* {
  margin: 0;
  padding: 0;
}

html{
  font-size:12px;
}

body {
  background-color: #000000;
}

#text {
  height:30px;
}

#text, 
#text a{
  color:#FFF;
  font-size:12px;
  font-family:Arial, san-serif;
  line-height:1.5rem;
  float:none;
  width:auto;
}

#text a{
  text-decoration:underline;
  cursor:pointer;
  pointer-events:auto!important;
}

#text a:hover {
  color:#FFDD1B;
}

#container {
  width: 100%;
  margin: 0 auto;
}

/*neon*/

p {
  text-align: center;
  font-size: 7rem;
  margin: 20px 0 20px 0;
  padding:0;
  width:50%;
  height:9rem;
  float:left;
  box-sizing:padding-box;
}

a {
  text-decoration: none;
  pointer-events:none;
}

#red{
  color:#FF1177;
  font-family: Monoton;
  text-shadow: 0 0 0 #fff, 0 0 0 #fff, 0 0 0 #fff, 0 0 0 #FF1177, 0 0 0 #FF1177, 0 0 0 #FF1177, 0 0 0 #FF1177, 0 0 0 #FF1177;
}

#red.redGlow {
  color: #ffffff;
  text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 15px #fff, 0 0 20px #FF1177, 0 0 35px #FF1177, 0 0 40px #FF1177, 0 0 50px #FF1177, 0 0 75px #FF1177;
}

#blue {
  font-size: 1.5em;
  color: #228DFF;
  font-family: Iceland;
  text-shadow: 0 0 0 #FFFFFF, 0 0 0 #FFFFFF, 0 0 0 #FFFFFF, 0 0 0 #228DFF, 0 0 0 #228DFF, 0 0 0 #228DFF, 0 0 0 #228DFF, 0 0 0 #228DFF;
}

#blue.blueGlow {
  color:#FFFFFF;
  text-shadow: 0 0 10px #FFFFFF, 0 0 20px #FFFFFF, 0 0 30px #FFF, 0 0 40px #228DFF, 0 0 70px #228DFF, 0 0 80px #228DFF, 0 0 100px #228DFF, 0 0 150px #228DFF;
  
}

#yellow {
  color: #FFDD1B;
  font-family: Pacifico;
  text-shadow: 0 0 0 #fff, 0 0 0 #fff, 0 0 0 #fff, 0 0 0 #FFDD1B, 0 0 0 #FFDD1B, 0 0 0 #FFDD1B, 0 0 0 #FFDD1B, 0 0 0 #FFDD1B;
}

#yellow.yellowGlow{
  color: #ffffff;
   text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 15px #fff, 0 0 20px #FFDD1B, 0 0 35px #FFDD1B, 0 0 40px #FFDD1B, 0 0 50px #FFDD1B, 0 0 75px #FFDD1B;
}

#green {
  color: #B6FF00;
  font-family: PressStart;
  font-size: 0.8em;
  text-shadow: 0 0 0 #fff, 0 0 0 #fff, 0 0 0 #fff, 0 0 0 #B6FF00, 0 0 0 #B6FF00, 0 0 0 #B6FF00, 0 0 0 #B6FF00, 0 0 0 #B6FF00;
  
}

#green.greenGlow {
  color: #ffffff;
  text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 15px #fff, 0 0 20px #B6FF00, 0 0 35px #B6FF00, 0 0 40px #B6FF00, 0 0 50px #B6FF00, 0 0 75px #B6FF00;
}

#orange {
  color: #FF9900;
  font-family: Audiowide;
  text-shadow: 0 0 0 #fff, 0 0 0 #fff, 0 0 0 #fff, 0 0 0 #FF9900, 0 0 0 #FF9900, 0 0 0 #FF9900, 0 0 0 #FF9900, 0 0 0 #FF9900;
  
}

#orange.orangeGlow {
  color: #ffffff;
  text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 15px #fff, 0 0 20px #FF9900, 0 0 35px #FF9900, 0 0 40px #FF9900, 0 0 50px #FF9900, 0 0 75px #FF9900;
}

#violet {
  color: #BA01FF;
  font-family: Vampiro One;  
  text-shadow: 0 0 0 #fff, 0 0 0 #fff, 0 0 0 #fff, 0 0 0 #ff00de, 0 0 0 #ff00de, 0 0 0 #ff00de, 0 0 0 #ff00de, 0 0 0 #ff00de;
}

#violet.violetGlow {
  color: #ffffff;
  text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 15px #fff, 0 0 20px #ff00de, 0 0 35px #ff00de, 0 0 40px #ff00de, 0 0 50px #ff00de, 0 0 75px #ff00de;
}

p a:hover {
  color: #ffffff;
}

/*RESPONSIVE*/
/*@media (max-width: 1750px) {
  #container {
    width: 100%;
  }
  p {
    font-size: 4.5em;
  }
}

@media (max-width: 1550px) {
  #container {
    width: 100%;
  }
  p {
    font-size: 5.5em;
  }

@media (max-width: 1150px) {
  #container {
    width: 100%;
  }
  p {
    font-size: 4.5em;
    width:50%;
  }
}*/

@media (max-width: 650px) {
  #container {
    width: 100%;
  }
  p {
    font-size: 3.5rem;
    width:100%;
  }
}
/*
@media (max-width: 400px) {
  #container {
    width: 100%;
  }
  p {
    font-size: 3.5em;
    width:100%;
  }
}*/
              
            
!

JS

              
                // red glow
function redGlow(){

  var tlRed = new TimelineMax();
  
  tlRed
  .to("#red", 2, {
    className: "+=redGlow"
  })
  .to("#red", 2, {
    className: "-=redGlow",
  }, "+=1");
  
  return tlRed;
}  
 

// blue glow
function blueGlow(){
  
  var tlBlue = new TimelineMax();
  
  tlBlue
  .to("#blue", 2, {
    className: "+=blueGlow"
  })
  .to("#blue", 2, {
    className: "-=blueGlow",
  }, "+=1");
  
  return tlBlue;
}


// yellow glow
function yellowGlow(){
  
  var tlYellow = new TimelineMax();
  
  tlYellow
  .to("#yellow", 2, {
    className: "+=yellowGlow"
  })
  .to("#yellow", 2, {
    className: "-=yellowGlow",
  }, "+=1");
  
  return tlYellow;
}

// green glow
function greenGlow(){
  
  var tlGreen = new TimelineMax();
  
  tlGreen
  .to("#green", 2, {
    className: "+=greenGlow"
  })
  .to("#green", 2, {
    className: "-=greenGlow",
  }, "+=1");
  
  return tlGreen;
}

// orange glow
function orangeGlow(){
  
  var tlOrange = new TimelineMax();
  
  tlOrange
  .to("#orange", 2, {
    className: "+=orangeGlow"
  })
  .to("#orange", 2, {
    className: "-=orangeGlow",
  }, "+=1");
  
  return tlOrange;
}

// violet glow
function violetGlow(){
  
  var tlViolet = new TimelineMax();
  
  tlViolet
  .to("#violet", 2, {
    className: "+=violetGlow"
  })
  .to("#violet", 2, {
    className: "-=violetGlow",
  }, "+=1");
  
  return tlViolet;
}


// master timeline
var tlMaster = new TimelineMax({
  paused:true,
  repeat:-1,
  repeatDelay:1
});

tlMaster
.add(redGlow(),0)
.add(blueGlow(),0)
.add(yellowGlow(),0)
.add(greenGlow(),0)
.add(orangeGlow(),0)
.add(violetGlow(),0)
.progress(1).progress(0)
.play();
              
            
!
999px

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