A Pen by seth kontny.

A-Pen-by-seth-kontny.markdown

A Pen by seth kontny

A Pen by seth kontny on CodePen.

License.

index.html

  <div class="column-container clearfix">

    <!-- col 1 -->
    <div class="column">
      <div class="block block-1x block-slate" data-scrollreveal="enter top over 3s after 0.5s"></div>
      <div class="block block-2x block-mango" data-scrollreveal="enter right after 0.5s"></div>
      <div class="block block-1x block-kiwi" data-scrollreveal="enter bottom over 1s and move 300px after 0.3s"></div>
      <div class="block block-3x block-blueberry" data-scrollreveal="enter top over 0.5s and move 200px"></div>
      <div class="block block-2x block-raspberry" data-scrollreveal="enter bottom over 1s and move 100px"></div>
      <div class="block block-1x block-grape" data-scrollreveal="enter top"></div>
    </div>

    <!-- col 2 -->
    <div class="column">
      <div class="block block-3x block-kiwi" data-scrollreveal="enter bottom over 1s and move 300px after 0.3s"></div>
      <div class="block block-1x block-orange" data-scrollreveal="enter left"></div>
      <div class="block block-2x block-grape" data-scrollreveal="enter top"></div>
      <div class="block block-1x block-orange" data-scrollreveal="enter left"></div>
      <div class="block block-1x block-grape" data-scrollreveal="enter top"></div>
      <div class="block block-2x block-slate" data-scrollreveal="enter top over 3s after 0.5s"></div>
    </div>

    <!-- col 3 -->
    <div class="column">
      <div class="block block-2x block-raspberry" data-scrollreveal="enter bottom over 1s and move 100px"></div>
      <div class="block block-1x block-blueberry" data-scrollreveal="enter top over 0.5s and move 200px"></div>
      <div class="block block-2x block-slate" data-scrollreveal="enter top over 3s after 0.5s"></div>
      <div class="block block-1x block-mango" data-scrollreveal="enter right after 0.5s"></div>
      <div class="block block-1x block-slate" data-scrollreveal="enter top over 3s after 0.5s"></div>
      <div class="block block-3x block-orange" data-scrollreveal="enter left"></div>
    </div>

    <!-- col 4 -->
    <div class="column">
      <div class="block block-1x block-orange" data-scrollreveal="enter left"></div>
      <div class="block block-2x block-grape" data-scrollreveal="enter top"></div>
      <div class="block block-3x block-raspberry" data-scrollreveal="enter bottom over 1s and move 100px"></div>
      <div class="block block-1x block-blueberry" data-scrollreveal="enter top over 0.5s and move 200px"></div>
      <div class="block block-2x block-kiwi" data-scrollreveal="enter bottom over 1s and move 300px after 0.3s"></div>
      <div class="block block-1x block-mango" data-scrollreveal="enter right after 0.5s"></div>
    </div>

    <!-- col 5 -->
    <div class="column">
      <div class="block block-3x block-mango" data-scrollreveal="enter right after 0.5s"></div>
      <div class="block block-1x block-kiwi" data-scrollreveal="enter bottom over 1s and move 300px after 0.3s"></div>
      <div class="block block-2x block-orange" data-scrollreveal="enter left"></div>
      <div class="block block-1x block-grape" data-scrollreveal="enter top"></div>
      <div class="block block-1x block-slate" data-scrollreveal="enter top over 3s after 0.5s"></div>
      <div class="block block-2x block-raspberry" data-scrollreveal="enter bottom over 1s and move 100px"></div>
    </div>

    <!-- col 6 -->
    <div class="column">
      <div class="block block-1x block-kiwi" data-scrollreveal="enter bottom over 1s and move 300px after 0.3s"></div>
      <div class="block block-3x block-slate" data-scrollreveal="enter top over 3s after 0.5s"></div>
      <div class="block block-1x block-blueberry" data-scrollreveal="enter top over 0.5s and move 200px"></div>
      <div class="block block-3x block-kiwi" data-scrollreveal="enter bottom over 1s and move 300px after 0.3s"></div>
      <div class="block block-1x block-orange" data-scrollreveal="enter left"></div>
      <div class="block block-1x block-blueberry" data-scrollreveal="enter top over 0.5s and move 200px"></div>
    </div>

    <!-- col 7 -->
    <div class="column">
      <div class="block block-2x block-blueberry" data-scrollreveal="enter top over 0.5s and move 200px"></div>
      <div class="block block-1x block-raspberry" data-scrollreveal="enter bottom over 1s and move 100px"></div>
      <div class="block block-1x block-mango" data-scrollreveal="enter right after 0.5s"></div>
      <div class="block block-3x block-raspberry" data-scrollreveal="enter bottom over 1s and move 100px"></div>
      <div class="block block-2x block-mango" data-scrollreveal="enter right after 0.5s"></div>
      <div class="block block-1x block-slate" data-scrollreveal="enter top over 3s after 0.5s"></div>
    </div>

    <!-- col 8 -->
    <div class="column">
      <div class="block block-1x block-grape" data-scrollreveal="enter top"></div>
      <div class="block block-2x block-orange" data-scrollreveal="enter left"></div>
      <div class="block block-1x block-grape" data-scrollreveal="enter top"></div>
      <div class="block block-3x block-slate" data-scrollreveal="enter top over 3s after 0.5s"></div>
      <div class="block block-1x block-blueberry" data-scrollreveal="enter top over 0.5s and move 200px"></div>
      <div class="block block-2x block-kiwi" data-scrollreveal="enter bottom over 1s and move 300px after 0.3s"></div>
    </div>

  </div>

script.js

/*
                       _ _ _____                      _   _
                      | | |  __ \                    | | (_)
    ___  ___ _ __ ___ | | | |__) |_____   _____  __ _| |  _ ___
   / __|/ __| '__/ _ \| | |  _  // _ \ \ / / _ \/ _` | | | / __|
   \__ \ (__| | | (_) | | | | \ \  __/\ V /  __/ (_| | |_| \__ \
   |___/\___|_|  \___/|_|_|_|  \_\___| \_/ \___|\__,_|_(_) |___/
                                                        _/ |
                                                       |__/

    "Declarative on-scroll reveal animations."

/*=============================================================================

    scrollReveal.js is inspired by cbpScroller.js, © 2014, Codrops.

    Licensed under the MIT license.
    http://www.opensource.org/licenses/mit-license.php

    scrollReveal.js, © 2014 https://twitter.com/julianlloyd

=============================================================================*/

;(function (window) {

  'use strict';

  var docElem = window.document.documentElement;

  function getViewportH () {
    var client = docElem['clientHeight'],
      inner = window['innerHeight'];

    return (client < inner) ? inner : client;
  }

  function getOffset (el) {
    var offsetTop = 0,
        offsetLeft = 0;

    do {
      if (!isNaN(el.offsetTop)) {
        offsetTop += el.offsetTop;
      }
      if (!isNaN(el.offsetLeft)) {
        offsetLeft += el.offsetLeft;
      }
    } while (el = el.offsetParent)

    return {
      top: offsetTop,
      left: offsetLeft
    }
  }

  function isElementInViewport (el, h) {
    var scrolled = window.pageYOffset,
        viewed = scrolled + getViewportH(),
        elH = el.offsetHeight,
        elTop = getOffset(el).top,
        elBottom = elTop + elH,
        h = h || 0;

    return (elTop + elH * h) <= viewed && (elBottom) >= scrolled;
  }

  function extend (a, b) {
    for (var key in b) {
      if (b.hasOwnProperty(key)) {
        a[key] = b[key];
      }
    }
    return a;
  }


  function scrollReveal(options) {
      this.options = extend(this.defaults, options);
      this._init();
  }



  scrollReveal.prototype = {
    defaults: {
      axis: 'y',
      distance: '25px',
      duration: '0.66s',
      delay: '0s',

  //  if 0, the element is considered in the viewport as soon as it enters
  //  if 1, the element is considered in the viewport when it's fully visible
      viewportFactor: 0.33
    },

    /*=============================================================================*/

    _init: function () {

      var self = this;

      this.elems = Array.prototype.slice.call(docElem.querySelectorAll('[data-scrollReveal]'));
      this.scrolled = false;

  //  Initialize all scrollreveals, triggering all
  //  reveals on visible elements.
      this.elems.forEach(function (el, i) {
        self.animate(el);
      });

      var scrollHandler = function () {
        if (!self.scrolled) {
          self.scrolled = true;
          setTimeout(function () {
            self._scrollPage();
          }, 60);
        }
      };

      var resizeHandler = function () {
        function delayed() {
          self._scrollPage();
          self.resizeTimeout = null;
        }
        if (self.resizeTimeout) {
          clearTimeout(self.resizeTimeout);
        }
        self.resizeTimeout = setTimeout(delayed, 200);
      };

      window.addEventListener('scroll', scrollHandler, false);
      window.addEventListener('resize', resizeHandler, false);
    },

    /*=============================================================================*/

    _scrollPage: function () {
        var self = this;

        this.elems.forEach(function (el, i) {
            if (isElementInViewport(el, self.options.viewportFactor)) {
                self.animate(el);
            }
        });
        this.scrolled = false;
    },

    /*=============================================================================*/

    parseLanguage: function (el) {

  //  Splits on a sequence of one or more commas, periods or spaces.
      var words = el.getAttribute('data-scrollreveal').split(/[, ]+/),
          enterFrom,
          parsed = {};

      function filter (words) {
        var ret = [],

            blacklist = [
              "from",
              "the",
              "and",
              "then",
              "but"
            ];

        words.forEach(function (word, i) {
          if (blacklist.indexOf(word) > -1) {
            return;
          }
          ret.push(word);
        });

        return ret;
      }

      words = filter(words);

      words.forEach(function (word, i) {

        switch (word) {
          case "enter":
            enterFrom = words[i + 1];

            if (enterFrom == "top" || enterFrom == "bottom") {
              parsed.axis = "y";
            }

            if (enterFrom == "left" || enterFrom == "right") {
              parsed.axis = "x";
            }

            return;

          case "after":
            parsed.delay = words[i + 1];
            return;

          case "wait":
            parsed.delay = words[i + 1];
            return;

          case "move":
            parsed.distance = words[i + 1];
            return;

          case "over":
            parsed.duration = words[i + 1];
            return;

          case "trigger":
            parsed.eventName = words[i + 1];
            return;

          default:
        //  Unrecognizable words; do nothing.
            return;
        }
      });

  //  After all values are parsed, let’s make sure our our
  //  pixel distance is negative for top and left entrances.
  //
  //  ie. "move 25px from top" starts at 'top: -25px' in CSS.

      if (enterFrom == "top" || enterFrom == "left") {

        if (!typeof parsed.distance == "undefined") {
          parsed.distance = "-" + parsed.distance;
        }

        else {
          parsed.distance = "-" + this.options.distance;
        }

      }

      return parsed;
    },

    /*=============================================================================*/

    genCSS: function (el, axis) {
      var parsed = this.parseLanguage(el);

      var dist   = parsed.distance || this.options.distance,
          dur    = parsed.duration || this.options.duration,
          delay  = parsed.delay    || this.options.delay,
          axis   = parsed.axis     || this.options.axis;

      var transition = "-webkit-transition: all " + dur + " ease " + delay + ";" +
                          "-moz-transition: all " + dur + " ease " + delay + ";" +
                            "-o-transition: all " + dur + " ease " + delay + ";" +
                               "transition: all " + dur + " ease " + delay + ";";

      var initial = "-webkit-transform: translate" + axis + "(" + dist + ");" +
                       "-moz-transform: translate" + axis + "(" + dist + ");" +
                            "transform: translate" + axis + "(" + dist + ");" +
                              "opacity: 0;";

      var target = "-webkit-transform: translate" + axis + "(0);" +
                      "-moz-transform: translate" + axis + "(0);" +
                           "transform: translate" + axis + "(0);" +
                             "opacity: 1;";
      return {
        transition: transition,
        initial: initial,
        target: target,
        totalDuration: ((parseFloat(dur) + parseFloat(delay)) * 1000)
      };
    },

    /*=============================================================================*/

    animate: function (el) {
      var css = this.genCSS(el);

      if (!el.getAttribute('data-sr-init')) {
        el.setAttribute('style', css.initial);
        el.setAttribute('data-sr-init', true);
      }

      if (el.getAttribute('data-sr-complete')) {
        return;
      }

      if (isElementInViewport(el, this.options.viewportFactor)) {
        el.setAttribute('style', css.target + css.transition);

        setTimeout(function () {
          el.removeAttribute('style');
          el.setAttribute('data-sr-complete', true);
        }, css.totalDuration);
      }

    }
  }; // end scrollReveal.prototype

  document.addEventListener("DOMContentLoaded", function (evt) {
    window.scrollReveal = new scrollReveal();
  });

})(window);

style.css

/* http://meyerweb.com/eric/tools/css/reset/
   v2.0 | 20110126
   License: none (public domain)
*/
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}

/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
  display: block;
}

body {
  line-height: 1;
}

ol, ul {
  list-style: none;
}

blockquote, q {
  quotes: none;
}

blockquote:before, blockquote:after,
q:before, q:after {
  content: '';
  content: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

a {
  cursor: pointer;
}

* {
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

html {
  overflow: -moz-scrollbars-vertical;
  overflow-y: scroll;
}

h1, .h1 {
  font-family: "proxima-nova", sams-serif;
  font-weight: 100;
}

html, body {
  font-family: "proxima-nova", sans-serif;
  font-weight: 300;
}

.clearfix:before,
.clearfix:after {
  content: " ";
  display: table;
}

.clearfix:after {
  clear: both;
}

html, body {
  color: white;
  text-align: center;
}
@media screen and (min-width: 300px) {
  html, body {
    font-size: 14px;
  }
}
@media screen and (min-width: 460px) {
  html, body {
    font-size: 20px;
  }
}
@media screen and (min-width: 900px) {
  html, body {
    font-size: 24px;
  }
}

h1, .h1 {
  line-height: 1.166;
  margin: 0.66em 0;
}

@media screen and (min-width: 300px) {
  h1, .h1 {
    font-size: 2.33em;
  }
}
@media screen and (min-width: 460px) {
  h1, .h1 {
    font-size: 2.66em;
  }
}
@media screen and (min-width: 720px) {
  h1, .h1 {
    font-size: 3.33em;
  }
}

p {
  color: #616c84;
  margin: 0.33em 0;
}

a:link,
a:visited {
  color: #35ff99;
  text-decoration: none;
  border-radius: 5px;
  padding: 2px;
}

a:hover,
a:active {
  background: #35ff99;
  color: #202a39;
}

small {
  font-size: .75em;
}

em {
  font-style: italic;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.text-center {
  text-align: center;
}

html, body {
  height: 100%;
  background: #202a39;
}

.column-container {
  width: 80%;
  max-width: 1000px;
  margin: 0 auto;
  height: 250%;
  text-align: center;
}
@media screen and (min-width: 300px) {
  .column-container {
    padding-top: 20%;
    margin-bottom: -125px;
  }
}
@media screen and (min-width: 720px) {
  .column-container {
    padding-top: 10%;
  }
}

.column {
  width: 3%;
  height: 100%;
  margin: 0 2%;
  display: inline-block;
}

.block {
  border-radius: 5px;
  margin-bottom: 150%;
}

.block-1x {
  height: 10%;
}

.block-2x {
  height: 15%;
}

.block-3x {
  height: 20%;
}

.block-blueberry {
  background: #008597;
}

.block-slate {
  background: #2d3443;
}

.block-grape {
  background: #4d407c;
}

.block-raspberry {
  background: #ff005d;
}

.block-mango {
  background: #ffcc00;
}

.block-orange {
  background: #ff7c35;
}

.block-kiwi {
  background: #35ff99;
}

.withLove {
  overflow: hidden;
  text-align: center;
  padding-bottom: 2em;
  cursor: default;
  color: #616c84;
}
@media screen and (min-width: 900px) {
  .withLove {
    margin-top: 125px;
  }
}
.withLove * {
  display: inline-block;
}
.withLove .alpha,
.withLove .omega {
  width: 40%;
}
.withLove .alpha {
  text-align: right;
}
.withLove .omega {
  text-align: left;
}
.withLove .heart {
  margin: 0 -2px;
  position: relative;
  z-index: 3;
  -webkit-animation: throb 1.33s ease-in-out infinite;
  animation: throb 1.33s ease-in-out infinite;
}
.withLove .heart path {
  fill: #ff005d;
}
@media screen and (min-width: 300px) {
  .withLove .heart {
    width: 30px;
    height: 30px;
    top: .66em;
  }
}
@media screen and (min-width: 460px) {
  .withLove .heart {
    top: .8em;
    width: 50px;
    height: 50px;
  }
}

@-webkit-keyframes throb {
  0% {
    -webkit-transform: scale(1);
  }

  50% {
    -webkit-transform: scale(0.8);
  }

  100% {
    -webkit-transform: scale(1);
  }
}

@keyframes throb {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(0.8);
  }

  100% {
    transform: scale(1);
  }
}