Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Behavior

Auto Save

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                <link href='//fonts.googleapis.com/css?family=Signika+Negative:300,400,600' rel='stylesheet' type='text/css'>
<div id="container"></div>
<div id="instructions">
  <div id="controls">
    <div class="control">
      <div class="control-label">from:</div>
      <div class="control-vertical">
        <label for="center"><input type="radio" id="center" name="from" value="center" checked> <code>"center"</code></label>
        <label for="end"><input type="radio" id="end" name="from" value="end"> <code>"end"</code></label>
        <label for="edges"><input type="radio" id="edges" name="from" value="edges"> <code>"edges"</code></label>
        <label for="random"><input type="radio" id="random" name="from" value="random"> <code>"random"</code></label>
        <label for="index"><input type="radio" id="index" name="from" value="11"> <code id="fromIndex">11 (index)</code></label>
      </div>
    </div>
    
    <div class="control">
      <div class="control-label">axis:</div>
      <div class="control-vertical">
        <label for="null"><input type="radio" id="null" name="axis" value="null" checked> <code>null</code> (both)</label>
        <label for="x"><input type="radio" id="x" name="axis" value="x"> <code>"x"</code></label>
        <label for="y"><input type="radio" id="y" name="axis" value="y"> <code>"y"</code></label>
      </div>
    </div>
    
    <div class="control">
      <div class="control-label">ease:</div>
      <div class="control-vertical">
        <label for="linear"><input type="radio" id="linear" name="ease" value='"none"' checked> <code>"none"</code></label>
        <label for='"easeInOut"'><input type="radio" id="easeInOut" name="ease" value='"power3.inOut"'> <code>"power3.inOut"</code></label>
        <label for="easeOut"><input type="radio" id="easeOut" name="ease" value='"power2.in"'> <code>"power2.in"</code></label>
      </div>
    </div>
    
  </div>
  <p>Play with the options above to see how it affects the animation and the code below. Click any box to have the stagger emanate outward from that specific index number, using the <code class="featured">from:[index]</code> syntax.</p>
  <div class="code">
    <code>gsap.to(".box", {</code><br>
    <code>&nbsp;&nbsp;duration: 1,</code><br>
    <code>&nbsp;&nbsp;scale: 0.1,</code><br>
    <code>&nbsp;&nbsp;y: 40,</code><br>
    <code>&nbsp;&nbsp;ease: "power1.inOut",</code><br>
    <code class="featured">&nbsp;&nbsp;stagger: {</code><br>
    <code class="featured">&nbsp;&nbsp;&nbsp;&nbsp;grid: [7,15],</code><br>
    <code class="featured">&nbsp;&nbsp;&nbsp;&nbsp;from: <span id="from">"center"</span>,<br></code>
    <code id="axisCode" class="featured" style="display:none;">&nbsp;&nbsp;&nbsp;&nbsp;axis: <span id="axis">null</span>,<br></code>
    <code id="easeCode" class="featured" style="display:none;">&nbsp;&nbsp;&nbsp;&nbsp;ease: <span id="ease">Linear.easeNone</span>,<br></code>
    <code class="featured">&nbsp;&nbsp;&nbsp;&nbsp;amount: 1.5</code><br>
    <code class="featured">&nbsp;&nbsp;}</code><br>
    <code>});</code>
  </div>
  
              
            
!

CSS

              
                /* Typography */

@font-face {
  font-display: block;
  font-family: Mori;
  font-style: normal;
  font-weight: 400;
  src: url(https://assets.codepen.io/16327/PPMori-Regular.woff) format("woff");
}

@font-face {
  font-display: block;
  font-family: Mori;
  font-style: normal;
  font-weight: 600;
  src: url(https://assets.codepen.io/16327/PPMori-SemiBold.woff) format("woff");
}

@font-face {
  font-display: block;
  font-family: Fraktion Mono;
  font-style: normal;
  font-weight: 400;
  src: url(https://assets.codepen.io/16327/PPFraktionMono-Bold.woff)
    format("woff");
}

:root {
  --color-shockingly-green: #0ae448;
  --color-just-black: #0e100f;
  --color-surface-white: #fffce1;
  --color-pink: #fec5fb;
  --color-shockingly-pink: #f100cb;
  --color-orangey: #ff8709;
  --color-lilac: #9d95ff;
  --color-lt-green: #abff84;
  --color-blue: #00bae2;
  --color-grey: gray;
  --color-surface75: #bbbaa6;
  --color-surface50: #7c7c6f;
  --color-surface25: #42433d;
}

:root {
  --dark: var(--color-just-black);
  --grey-dark: #42433d;
  --light: var(--color-surface-white);
  --mid: #7c7c6f;
  --grey: #gray;
  --gray: #gray;
  --green: var(--color-shockingly-green);
  --green-dark: #0ae448;
  --green-light: var(--color-lt-green);
  --blue: var(--color-blue);
  --purple: var(--color-lilac);
  --red: #cd237f;
  --orange: var(--color-orangey);
  accent-color: var(--color-shockingly-green);
}

body {
  color: var(--color-surface-white);
  background-color: var(--dark);
  font-family: Mori, sans-serif;
  font-weight: 400;
  margin: 0;
  font-size: var(--step-0);
  line-height: 1.45;
}

html, body {
  width: 0;         /* for fixing iOS iframe issues */
  min-width: 100%;  /* for fixing iOS iframe issues */
  overflow-x: hidden;
  position: relative;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  accent-color: var(--color-shockingly-green);
}
body {
  background-color: #0e100f;
  text-align: center;
  color: #bbb;
  font-weight: 300;
  font-size: 18px;
  padding: 10px 0;
}
h1 {
  margin: 0;
  font-size: 50px;
  text-align: left;
}
h2 {
  font-size: 38px;
  margin-bottom: 0;
}
h1, h2, h3 {
  color: white;
  font-weight: 400;
}
h3 {
  margin-bottom: -12px;
}
#header {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
}
a {
  color: #88ce02;
  text-decoration: none;
  font-weight: 400;
}
a:hover {
  text-decoration: underline;
}
#container {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
}
.box {
  background-color: #0ae448!important;
  position: relative;
  border-radius: 5px;
}
.box:before {
  padding-top:100%;
  content:"";
  display:block;
}
#instructions {
  margin-top: 35px;
  padding:0 16px 16px 16px;
  text-align: left;
  max-width: 1000px;
  display: inline-block;
}

.code {
  background-color: #292a2b;
  padding: 12px;
  border-radius: 10px;
}

strong {
  font-weight: 400;
  font-size: 20px;
}
.question {

  font-size: 21px;
  font-weight: 400;
  display: block;
}
#controls {
  text-align: center;
  display:flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: start;
}
.control {
  display: flex;
  align-items: flex-start;
  color: white;
  margin-bottom: 10px;
}
.control-label {
  margin-top: 10px;
}
.control-vertical {
  display: flex;
  flex-direction: column;
  align-content: flex-start;
  text-align: left;
  justify-content: flex-start;
  padding: 6px 8px;
  border-radius: 9px;
  background-color: #111;
  margin-right: 18px;
  color: #bbb;
}

.fr-video {
  display: block;
  position: relative;
  width: 100%;
  height: 0;
  float: left;
  padding-bottom: 56.25%;
  margin: 12px 0 35px 0;
}

.fr-video iframe {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  border: 2px solid #444;
}

#instructions li {
  margin-bottom: 10px;
}

@media only screen and (max-width: 640px) {
  h1 {
    font-size: 30px;
    line-height: 30px;
  }
  #controls {
    align-items: flex-start;
    justify-content: flex-start;
  }
}
              
            
!

JS

              
                //GSAP 3 introduces advanced stagger values
var grid = [5,13], //[rows, columns]
    tl = gsap.timeline({repeat: -1, repeatDelay: 0.5});

function animateBoxes(from, axis, ease) {
  //one stagger call does all the animation:
  tl.to(".box", {
      duration: 1,
      scale: 0.1, 
      y: 60,
      yoyo: true, 
      repeat: 1, 
      ease: "power1.inOut",
      stagger: {
        amount: 1.5, 
        grid: grid, 
        axis: axis, 
        ease: ease,
        from: from
      }
    }
  );
}




//builds a grid of <div class="box"> elements, dropped into #container (unrelated to animation code)
buildGrid({grid: grid, className: "box", width: 1000, gutter: 15, parent: "#container", onCellClick: onCellClick});

animateBoxes("center");




//---- the rest of the code below just handles all the interactivity ----

var options = document.querySelectorAll('input[name="from"], input[name="axis"], input[name="ease"]'),
    _select = function(selector) {
      return document.querySelector(selector);
    },
    axisCodeEl = _select("#axisCode"),
    axisEl = _select("#axis"),
    easeCodeEl = _select("#easeCode"),
    easeEl = _select("#ease"),
    fromEl = _select("#from"),
    fromIndexEl = _select("#fromIndex"),
    indexEl = _select("#index"),
    selections = {from: "center", axis: null, ease: "none"},
    i;

//add change listeners
for (i = 0; i < options.length; i++) {
  options[i].addEventListener("change", onOptionChange);
}

function onOptionChange(e) {
  var group = e.target.getAttribute("name"),
      value = e.target.getAttribute("value");
  if (group === "from") {
    updateFrom(value);
  } else if (group === "axis") {
    selections.axis = (value === "null") ? null : value;
    axisCode.style.display = (value === "null") ? "none" : "inline";
    axisEl.textContent = '"' + value + '"';
  } else if (group === "ease") {
    easeEl.textContent = value;
    easeCodeEl.style.display = (value === '"none"') ? "none" : "inline";
    selections.ease = value.split('"').join("");
  }
  updateAnimation();
}

function updateFrom(value) {
  var current = selections.from,
      parsedVal = value,
      newIsNumber = !isNaN(value),
      oldIsNumber = !isNaN(current);
  if (newIsNumber) {
    parsedVal = parseInt(value, 10);
  } else if (value === "end") {
    parsedVal = grid[0] * grid[1] - 1;
    newIsNumber = true;
  }
  if (current !== parsedVal) {
    selections.from = parsedVal;
    fromEl.textContent = (value === "end") ? '"end"' : newIsNumber ? value : '"' + value + '"';
    if (newIsNumber && !oldIsNumber) {
      gsap.to(".box", {duration: 0.3, backgroundColor: "#abff84"});
    } else if (!newIsNumber && oldIsNumber) {
      gsap.to(".box", {duration: 0.3, backgroundColor: "#0ae448"});
    }
    if (newIsNumber) {
      if (value !== "end") {
        indexEl.checked = true;
        indexEl.setAttribute("value", parsedVal);
        fromIndexEl.textContent = parsedVal + " (index)";
      }
      gsap.fromTo("[data-index='" + parsedVal + "']", {rotation: 0}, {duration: 0.4, rotation: 360, backgroundColor: "#0ae448", ease: "power1.inOut"});
      if (oldIsNumber) {
        gsap.to("[data-index='" + current + "']", {duration: 0.3, backgroundColor: "#abff84"});
      }
    }
  }
}

function onCellClick(e) {
  updateFrom(e.target.index);
  updateAnimation();
}

function updateAnimation() {
  tl.seek(0).clear();
  animateBoxes(selections.from, selections.axis, selections.ease);
}

//helper function to build a grid of <div> elements
function buildGrid(vars) {
	vars = vars || {};
	var container = document.createElement("div"),
		rows = vars.grid[0] || 5,
		cols = vars.grid[1] || 5,
		width = vars.width || 100,
		gutter = vars.gutter || 1,
    className = vars.className || "",
		w = (width - cols * gutter) / cols,
		parent = (typeof(vars.parent) === "string") ? document.querySelector(vars.parent) : vars.parent ? vars.parent : document.body,
		css = "display: inline-block; margin: 0 " + (gutter / width * 100) + "% " + (gutter / width * 100) + "% 0; width: " + (w / width * 100) + "%;",
		l = rows * cols,
		i, box;
	for (i = 0; i < l; i++) {
		box = document.createElement("div");
		box.style.cssText = css;
    box.setAttribute("class", className);
    box.index = i;
    box.setAttribute("data-index", i);
    if (vars.onCellClick) {
      box.addEventListener("click", vars.onCellClick);
    }
		container.appendChild(box);
	}
	container.style.cssText = "width:" + width + "px; line-height: 0; padding:" + gutter + "px 0 0 " + gutter + "px; display:inline-block;";
	parent.appendChild(container);
	return container;
}

//this just helps avoid the pixel-snapping that some browsers do.
gsap.set(".box", {rotation: 0.5, force3D: true});
              
            
!
999px

Console