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1 August 2025

Ballbewegung - CSS

HTML

<!DOCTYPE html>
<html lang="en" >
<head>
  <meta charset="UTF-8">
  <title>Andev Web</title>
  <link rel="stylesheet" href="./style.css">

</head>
<body>
<html>
  <head>
    <meta charset="utf-8">
    <title>Nike Parallax Cards</title>

<div class="card card--19">
        <div class="card__header card__header--19">
          <div class="card__watermark" data-watermark="Air"></div>

<h1 class="card__title card__will-animate">Air Structure 1</h1>
          <span class="card__subtitle card__will-animate">From the Flymesh upper to the triple-density foam midsole, the Nike Air Zoom Structure 19 Men's Running Shoe offers plenty of support and the response you need for a smooth, stable ride that feels ultra fast.</span>

</div>

<span class="card__category card__will-animate">Men's running shoe</span>
        </div>
      </div>

<div class="card card--solstice">
        <div class="card__header card__header--solstice">
          <div class="card__watermark" data-watermark="Classic"></div>

<h1 class="card__title card__will-animate">Air Solstice QS</h1>
          <span class="card__subtitle card__will-animate">The Nike Air Solstice draws inspiration from the swoosh's classic running shoes of the 1980's updating the style with premium materials and impressive production quality.</span>

</div>

<div class="card card--huarache">
        <div class="card__header card__header--huarache">
          <div class="card__watermark" data-watermark="Safari"></div>

<h1 class="card__title card__will-animate">Air Huarache Utility</h1>
          <span class="card__subtitle card__will-animate">The Nike Air Huarache Utility Men's Shoe toughens up a famous running shoe with a nylon upper, fused mudguard and vibrant detail.</span>

</div>

</div>

</body>
</html>
  <script  src="./script.js"></script>

</body>
</html>

CSS

html,
body {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  font-family: "Poppins", "Quicksand", sans-serif;
  transition: background-color 0.2s;
  will-change: background-color;
}

.wrapper {
  position: relative;
  overflow-x: hidden;
  width: 100%;
  height: 100%;
}

.card {
  display: block;
  position: absolute;
  top: 25px;
  margin: 0 auto;
  width: 350px;
  background-color: #fff;
  border-radius: 15px;

box-shadow: 0 30 50 rgba(0, 0, 0, 0.2);

transform: translateX(-50%);
  transition: left 0.5s ease-out;
  will-change: left;

-webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -o-user-select: none;
  user-select: none;
}

.card--19 {
  left: 50%;
}

.card--solstice,
.card--huarache {
  left: 150%;
}

.card__header {
  position: relative;
  height: 170px;
  padding: 30px 30px 300px;
  border-top-right-radius: 15px;
  border-top-left-radius: 15px;
  color: #fff;
}

.card__header--19 {
  background-color: #F72648;
  background-image: linear-gradient(#F72648, #FCCB3C);

background: #F72648;
  background: linear-gradient(#F72648, #FCCB3C);
}

.card__header--solstice {
  background-color: #3CA3FC;
  background-image: linear-gradient(#3CA3FC, #FFD300);

background: #3CA3FC;
  background: linear-gradient(#3CA3FC, #FFD300);
}

.card__header--huarache {
  background-color: #26C9F7;
  background-image: linear-gradient(#26C9F7, #DFFC3C);

background: #26C9F7;
  background: linear-gradient(#26C9F7, #DFFC3C);
}

.card__watermark {
  overflow: hidden;
  position: absolute;
  bottom: 10px;
  left: 0;
  width: 100%;
}

.card__watermark::after {
  content: attr(data-watermark);
  position: relative;
  left: -20px;
  color: rgba(0, 0, 0, .3);
  font-size: 240px;
  font-weight: 700;
  text-transform: uppercase;
}

.card__logo {
  width: 50px;
  height: auto;
}
.card__price {
  float: right;
  font-size: 16px;
  font-weight: 300;
}
.card__title {
  margin: 35px 0 20px;
  font-size: 15px;
  line-height: 1.1em;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.card__subtitle {
  display: block;
  font-size: 13px;
  font-weight: 300;
}

.card__body {
  position: relative;
  padding: 40px 30px 20px;
}

.card__image {
  z-index: 1;
  position: absolute;
  top: -290px;
  left: -30px;
  width: 125%;

user-select: none;
  -moz-user-select: none;
  -webkit-user-drag: none;
  -webkit-user-select: none;
  -ms-user-select: none;
}

.card__wish-list {
  display: block;
  width: 50%;
  margin: 0 auto 15px;
  padding: 15px;
  border: 2px solid #fff;
  border-radius: 20px;
  text-align: center;
  text-transform: uppercase;
  font-size: 14px;
}

.card__wish-list--19 {
  color: #8850FF;
  border-color: #8850FF;
}

.card__wish-list--solstice {
  color: #FFBA00;
  border-color: #FFBA00;
}

.card__wish-list--huarache {
  color: #26C9F7;
  border-color: #26C9F7;
}

.card__category {
  display: block;
  font-size: 12px;
  color: #AEAEAE;
  text-transform: uppercase;
  text-align: center;
}

.card__will-animate {
  will-change: transform;
}

.cards-placeholder {
  display: block;
  position: relative;
  margin-bottom: 15px;
  text-align: center;
}

.cards-placeholder__item {
  opacity: 0.3;
  display: inline-block;
  margin-right: 10px;
  background-color: #fff;
  width: 30px;
  height: 5px;
  border-radius: 5px;

transition: opacity 0.2s;
  will-change: opacity;
}

.cards-placeholder__item--active {
  opacity: 1;
}

JS

(function () {
  'use strict';

var BODY_BACKGROUNDS = [
    '#8850FF',
    '#FFBA00',
    '#4054FF'
  ];

function Slider () {
    this.cards = document.querySelectorAll('.card');
    this.currentIndex = 0;

this.isDragging = false;
    this.startX = 0;
    this.currentX = 0;

this.initEvents();
    this.setActivePlaceholder();
  }

// initialize drag events
  Slider.prototype.initEvents = function () {
    document.addEventListener('touchstart', this.onStart.bind(this));
    document.addEventListener('touchmove', this.onMove.bind(this));
    document.addEventListener('touchend', this.onEnd.bind(this));

document.addEventListener('mousedown', this.onStart.bind(this));
    document.addEventListener('mousemove', this.onMove.bind(this));
    document.addEventListener('mouseup', this.onEnd.bind(this));

};

// set active placeholder
  Slider.prototype.setActivePlaceholder = function () {
    var placeholders = document.querySelectorAll('.cards-placeholder__item');
    var activePlaceholder = document.querySelector('.cards-placeholder__item--active')

if (activePlaceholder) {
      activePlaceholder.classList.remove('cards-placeholder__item--active');
    }

placeholders[this.currentIndex].classList.add('cards-placeholder__item--active');

var bodyEl = document.querySelector('body');
    bodyEl.style.backgroundColor = BODY_BACKGROUNDS[this.currentIndex];
  };

// mousedown event
  Slider.prototype.onStart = function (evt) {
    this.isDragging = true;

this.currentX = evt.pageX || evt.touches[0].pageX;
    this.startX = this.currentX;

var card = this.cards[this.currentIndex];

// calculate ration to use in parallax effect
    this.windowWidth = window.innerWidth;
    this.cardWidth = card.offsetWidth;
    this.ratio = this.windowWidth / (this.cardWidth / 4);
  };

// mouseup event
  Slider.prototype.onEnd = function (evt) {
    this.isDragging = false;

var diff = this.startX - this.currentX;
    var direction = (diff > 0) ? 'left' : 'right';
    this.startX = 0;

if (Math.abs(diff) > this.windowWidth / 4) {
      if (direction === 'left') {
        this.slideLeft();
      } else if (direction === 'right') {
        this.slideRight();
      } else {
        this.cancelMoveCard();
      }

} else {
      this.cancelMoveCard();

}

};

// mousemove event
  Slider.prototype.onMove = function (evt) {
    if (!this.isDragging) return;

this.currentX = evt.pageX || evt.touches[0].pageX;
    var diff = this.startX - this.currentX;
    diff *= -1;

// don't let drag way from the center more than quarter of window
    if (Math.abs(diff) > this.windowWidth / 4) {
      if (diff > 0) {
        diff = this.windowWidth / 4;
      } else {
        diff = - this.windowWidth / 4;
      }
    }

this.moveCard(diff);
  };

// slide to left direction
  Slider.prototype.slideLeft = function () {
    // if last don't do nothing
    if (this.currentIndex === this.cards.length - 1) {
      this.cancelMoveCard();
      return;
    }

var self = this;
    var card = this.cards[this.currentIndex];
    var cardWidth = this.windowWidth / 2;

card.style.left = '-50%';

this.resetCardElsPosition();

this.currentIndex += 1;
    this.setActivePlaceholder();
    card = this.cards[this.currentIndex];

card.style.left = '50%';

this.moveCardEls(cardWidth * 3);

// add delay to resetting position
    setTimeout(function () {
      self.resetCardElsPosition();
    }, 50);
  };

// slide to right direction
  Slider.prototype.slideRight = function () {
    // if last don't do nothing
    if (this.currentIndex === 0) {
      this.cancelMoveCard();
      return;
    }

var self = this;
    var card = this.cards[this.currentIndex];
    var cardWidth = this.windowWidth / 2;

card.style.left = '150%';

this.resetCardElsPosition();

this.currentIndex -= 1;
    this.setActivePlaceholder();
    card = this.cards[this.currentIndex];

card.style.left = '50%';

this.moveCardEls(-cardWidth * 3);

// add delay to resetting position
    setTimeout(function () {
      self.resetCardElsPosition();
    }, 50);
  };

// put active card in original position (center)
  Slider.prototype.cancelMoveCard = function () {
    var self = this;
    var card = this.cards[this.currentIndex];

card.style.transition = 'transform 0.5s ease-out';
    card.style.transform = '';

this.resetCardElsPosition();
  };

// reset to original position elements of card
  Slider.prototype.resetCardElsPosition = function () {
    var self = this;
    var card = this.cards[this.currentIndex];

var cardLogo = card.querySelector('.card__logo');
    var cardPrice = card.querySelector('.card__price');
    var cardTitle = card.querySelector('.card__title');
    var cardSubtitle = card.querySelector('.card__subtitle');
    var cardImage = card.querySelector('.card__image');
    var cardWishList = card.querySelector('.card__wish-list');
    var cardCategory = card.querySelector('.card__category');
    var cardWillAnimate = card.querySelectorAll('.card__will-animate');

// move card elements to original position
    cardWillAnimate.forEach(function (el) {
      el.style.transition = 'transform 0.5s ease-out';
    });

cardLogo.style.transform = '';
    cardPrice.style.transform = '';

cardTitle.style.transform = '';
    cardSubtitle.style.transform = '';

cardImage.style.transform = '';
    cardWishList.style.transform = '';
    cardCategory.style.transform = '';

// clear transitions
    setTimeout(function () {
      card.style.transform = '';
      card.style.transition = '';

cardWillAnimate.forEach(function (el) {
        el.style.transition = '';
      });
    }, 500);

};

// slide card while dragging
  Slider.prototype.moveCard = function (diff) {

var card = this.cards[this.currentIndex];

card.style.transform = 'translateX(calc(' + diff + 'px - 50%))';
    diff *= -1;

this.moveCardEls(diff);
  };

// create parallax effect on card elements sliding them
  Slider.prototype.moveCardEls = function (diff) {
    var card = this.cards[this.currentIndex];

cardLogo.style.transform = 'translateX(' + (diff / this.ratio) + 'px)';
    cardPrice.style.transform = 'translateX(' + (diff / this.ratio) + 'px)';

cardTitle.style.transform = 'translateX(' + (diff / (this.ratio * 0.90)) + 'px)';
    cardSubtitle.style.transform = 'translateX(' + (diff / (this.ratio * 0.85)) + 'px)';

cardImage.style.transform = 'translateX(' + (diff / (this.ratio * 0.35)) + 'px)';

cardWishList.style.transform = 'translateX(' + (diff / (this.ratio * 0.85)) + 'px)';
    cardCategory.style.transform = 'translateX(' + (diff / (this.ratio * 0.65)) + 'px)';

};

// create slider
  var slider = new Slider();

})();

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