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HTML

About HTML Preprocessors

HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Adding Classes

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html> tag. If you want to add classes there that can affect the whole document, this is the place to do it.

About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

!
Insecure Resource

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <nav class="centered"></nav>

<svg class="go go-next" width="32" height="55" viewBox="0 0 40 55">
  <polyline points="3 3 30 28 3 53"></polyline>
</svg>

<svg class="go go-prev" viewBox="0 0 40 55">
  <polyline points="28 3 3 28 28 53"></polyline>
</svg>

<div class="slides-container">

  <div class="slide active" id="slide01">
    <h1 class="lines">An APPLE per day<br>
      keeps the code clean!</h1>
  </div>

  <div class="slide" id="slide02">

    <img class="apple apple01 centered" src='https://s3-us-west-2.amazonaws.com/s.cdpn.io/174563/apple.png' alt=''>
    <img class="apple apple02 centered" src='https://s3-us-west-2.amazonaws.com/s.cdpn.io/174563/apple.png' alt=''>

    <div class="wrap centered">
      <h1 class="lines">Two APPLES per day ...<br>
        you become a MASTER!</h1>
    </div>

  </div>

  <div class="slide" id="slide03">
    <h1 class="lines">And you'll get <span>GREEN</span> socks</br>
      for faster CODING!</h1>
  </div>

  <div class="slide" id="slide04">
    <h1 class="lines">Join the GREENSOCK Club.</h1>
  </div>
 <div class="slide" id="slide05">
   
   
   Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.<br><br><br><br>
   Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.<br><br><br><br>
   Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.<br><br><br><br>
   
   Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.<br><br><br><br>
   Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.<br><br><br><br>
   Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.<br><br><br><br>
    
   Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.<br><br><br><br>
   Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.<br><br><br><br>
   Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.<br><br><br><br>
   
   Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.<br><br><br><br>
   Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.<br><br><br><br>
   Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.<br><br><br><br>
  </div>
</div>
!

CSS 

              
                body,
div,
p {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}

.go {
  width: 25px;
  stroke: #636363;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  z-index: 12;
}
.go-prev,
.go-next {
  position: absolute;
  cursor: pointer;
  top: 50%;
  left: 5px;
}
.go-next {
  left: calc(100% - 32px);
}
h1 {
  position: absolute;
  top: 50%;
  width: 100%;
  font-weight: 800;
  font-size: 36px;
  margin: 0;
}
nav {
  position: absolute;
  bottom: 10px;
  left: 50%;
  width: inherit;
  z-index: 100;
  visibility: hidden;
}
.navDot {
  position: relative;
  width: 15px;
  height: 15px;
  background-color: black;
  opacity: 0.5;
  border-radius: 50%;
  border: 1px solid transparent;
  margin-right: 20px;
  float: left;
  cursor: pointer;
}
.navDot:last-of-type {
  margin-right: 0px;
}
.navDot:hover {
  background-color: green;
  border: 1px solid black;
}

.slides-container {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  z-index: 10;
}

.slide {
  position: absolute;
  top: 0;
  left: 100%;
  width: 100%;
  height: 100%;
  text-align: center;
  background-color: grey;
  overflow: hidden;
}

#slide02 .wrap {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  text-align: center;
  height: 100px;
  overflow: hidden;
}
#slide02 h1 {
}
.apple01 {
  position: absolute;
  top: 56%;
  left: 40%;
  width: 160vh;
}
.apple02 {
  position: absolute;
  top: 58%;
  left: 58%;
  width: 160vh;
}

#slide05{
  overflow-y: auto;
}
!

JS 

              
                console.clear();

//  =============  xxxxx  ==========================

gsap.set(".centered", { autoAlpha: 1, xPercent: -50, yPercent: -50 });
gsap.set("h1", { autoAlpha: 1, yPercent: -50 });
gsap.set(" .slide", { autoAlpha: 1, xPercent: 0 });
gsap.set(".go", { autoAlpha: 1, yPercent: -50 });

var slides = $(".slide"),
  activeSlide = $(".slide.active"),
  next = $(".go-next"),
  prev = $(".go-prev"),
  moveSlideTL = gsap.timeline(),
  lines = $("h1");

// individual animations per slide ======

const allSlides = [].slice.call(slides);
let animations = [];

for (let [i] of allSlides.entries()) {
  animations[i] = gsap.timeline({});
}

animations[0]
  .from("#slide01 .lines", { y: 30, autoAlpha: 0, duration: 1, delay: 0.5 })
  .reverse();

animations[1]
  .from(".apple", {
    xPercent: -200,
    duration: 0.6,
    ease: "elastic.out(0.5, 0.4)",
    stagger: -0.4
  })
  .from("#slide02 .lines", { y: 120, duration: 1, delay: 1 }, "-=1.5")
  .reverse();

animations[2]
  .from("#slide03 .lines", { y: 30, autoAlpha: 0, duration: 1 })
  .set("#slide03 span", { color: "green" })
  .reverse();

animations[3]
  .from("#slide04 .lines", {
    scale: 0.2,
    transformOrigin: "center",
    duration: 2
  })
  .reverse();

// ===========================

$(".slides-container").swipe({
  swipe: function (event, direction) {
    if (direction === "left") {
      if (!moveSlideTL.isActive()) {
        if (!moveSlideTL.isActive()) {
          var slideFrom = $(".slide.active"),
            sectionToIndex = slides.index(slideFrom);

          if (sectionToIndex != 0) {
            slideTo = slides.eq(sectionToIndex - 1);
            moveToSlide(slideFrom, slideTo);
          }
        }
      }
    } else {
      if (!moveSlideTL.isActive()) {
        var slideFrom = $(".slide.active"),
          sectionToIndex = slides.index(slideFrom);

        if (sectionToIndex !== slides.length - 1) {
          slideTo = slides.eq(sectionToIndex + 1);
          moveToSlide(slideFrom, slideTo);
        }
      }
    }
  }
});

//==============================

function onMouseWheel(event) {
  //Normalize event wheel delta
  var delta =
    event.originalEvent.wheelDelta / 30 || -event.originalEvent.detail;

  if (delta < -1) {
    //scrolling down -> next slide
    if (!moveSlideTL.isActive()) {
      var slideFrom = $(".slide.active"),
        sectionToIndex = slides.index(slideFrom);

      if (sectionToIndex !== slides.length - 1) {
        slideTo = slides.eq(sectionToIndex + 1);
        moveToSlide(slideFrom, slideTo);
      }
    }
  } else if (delta > 1) {
    // -> prev
    if (!moveSlideTL.isActive()) {
      if (!moveSlideTL.isActive()) {
        var slideFrom = $(".slide.active"),
          sectionToIndex = slides.index(slideFrom);

        if (sectionToIndex != 0) {
          slideTo = slides.eq(sectionToIndex - 1);
          moveToSlide(slideFrom, slideTo);
        }
      }
    }
  }
  //event.preventDefault();
}

// ============================
function dotClick() {
  var slideFrom = $(".slide.active"),
    sectionToIndex = $(this).index(),
    sectionToIndex = $(this).index(),
    slideTo = slides.eq(sectionToIndex);

  var indexFrom = slideFrom.index();

  console.log(
    slideFrom,
    "from: " + indexFrom,
    "to: " + sectionToIndex,
    "slideTo: " + slideTo
  );

  //if(slideFrom !== slideTo && !moveSlideTL.isActive()) {  // not working

  if (indexFrom !== sectionToIndex && !moveSlideTL.isActive()) {
    moveToSlide(slideFrom, slideTo);
  }
}

// =============================
function nextClick() {
  if (!moveSlideTL.isActive()) {
    var slideFrom = $(".slide.active"),
      sectionToIndex = slides.index(slideFrom);

    if (sectionToIndex !== slides.length - 1) {
      slideTo = slides.eq(sectionToIndex + 1);
      moveToSlide(slideFrom, slideTo);
    }
  }
}

function prevClick() {
  if (!moveSlideTL.isActive()) {
    var slideFrom = $(".slide.active"),
      sectionToIndex = slides.index(slideFrom);

    if (sectionToIndex != 0) {
      slideTo = slides.eq(sectionToIndex - 1);
      moveToSlide(slideFrom, slideTo);
    }
  }
}

// ==============================
function moveToSlide(slideFrom, slideTo) {
  gsap.set(".go", { autoAlpha: 0 }); // ????

  if (slides.index(slideFrom) < slides.index(slideTo)) {
    // vorwärts

    moveSlideTL = gsap
      .timeline({
        onComplete: setActiveSlide,
        onCompleteParams: [slideTo, slideFrom]
      })
      .to(slideTo, { xPercent: -100, duration: 0.8, className: "slide active" })
      .to(slideFrom, { xPercent: -200, duration: 0.8, className: "slide" }, 0)
      .set(slideFrom, { xPercent: 0 });
  } else {
    moveSlideTL = gsap
      .timeline({
        onComplete: setActiveSlide,
        onCompleteParams: [slideTo, slideFrom]
      })
      .set(slideTo, { xPercent: -200, className: "slide active" })
      .to(slideTo, { xPercent: -100, duration: 0.8 })
      .to(slideFrom, { xPercent: 0, duration: 0.8, className: "slide" }, 0);
  }
}

function setActiveSlide(active, last) {
  var currentSlideIndex = slides.index(active);
  var lastSlideIndex = slides.index(last);

  animations[currentSlideIndex].reversed(false);
  animations[lastSlideIndex].progress(0).reversed(true);

  gsap.to(".navDot.active", { opacity: 0.5, scale: 1 });
  $(".navDot.active").removeClass("active");
  $(".navDot").eq(currentSlideIndex).addClass("active");
  gsap.to(".navDot.active", { opacity: 1, scale: 1.3 });

  if (currentSlideIndex == 0) {
    gsap.set(".go-prev", { autoAlpha: 0 });
  } else {
    gsap.set(".go-prev", { autoAlpha: 1 });
  }
  if (currentSlideIndex == slides.length - 1) {
    gsap.set(".go-next", { autoAlpha: 0 });
  } else {
    gsap.set(".go-next", { autoAlpha: 1 });
  }
}

// ================================
function init() {
  for (var i = 0; i < slides.length; i++) {
    var navDots = $("<div></div>").addClass("navDot").appendTo("nav");
    gsap.set(".navDot:first-child", {
      className: "navDot active",
      opacity: 1,
      scale: 1.3,
      transformOrigin: "center"
    });
    navDots.on("click", dotClick);
  }

  if (slides[0]) {
    gsap.set(".go-prev", { autoAlpha: 0 });
  }

  next.on("click", nextClick);
  prev.on("click", prevClick);

  $(window).on("mousewheel DOMMouseScroll", onMouseWheel);
  //$(window).on("touchmove", onMouseWheel);

  gsap.set($(".slide:odd"), { backgroundColor: "#0f8c0d", color: "#333333" });
  gsap.set(".slide.active", { xPercent: -100 });
  animations[0].reversed(false);
}

init();
!
999px

Console