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experiment07a.html
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<!DOCTYPE HTML>
<html>
<head>
<title>CSS Experiment 06b</title>
<!-- https://codepen.io/desandro/pen/jxwELK -->
<style>
* { box-sizing: border-box; }
body { font-family: sans-serif; }
.scene {
border: 1px solid #CCC;
margin: 40px 0;
position: relative;
width: 210px;
height: 140px;
margin: 40px auto;
perspective: 1000px;
}
.carousel {
width: 100%;
height: 100%;
position: absolute;
transform: translateZ(-288px);
transform-style: preserve-3d;
transition: transform 1s;
}
.carousel__cell {
position: absolute;
width: 190px;
height: 120px;
left: 10px;
top: 10px;
border: 2px solid black;
line-height: 116px;
font-size: 80px;
font-weight: bold;
color: white;
text-align: center;
}
.carousel__cell:nth-child(9n+1) { background: hsla( 0, 100%, 50%, 0.8); }
.carousel__cell:nth-child(9n+2) { background: hsla( 40, 100%, 50%, 0.8); }
.carousel__cell:nth-child(9n+3) { background: hsla( 80, 100%, 50%, 0.8); }
.carousel__cell:nth-child(9n+4) { background: hsla(120, 100%, 50%, 0.8); }
.carousel__cell:nth-child(9n+5) { background: hsla(160, 100%, 50%, 0.8); }
.carousel__cell:nth-child(9n+6) { background: hsla(200, 100%, 50%, 0.8); }
.carousel__cell:nth-child(9n+7) { background: hsla(240, 100%, 50%, 0.8); }
.carousel__cell:nth-child(9n+8) { background: hsla(280, 100%, 50%, 0.8); }
.carousel__cell:nth-child(9n+0) { background: hsla(320, 100%, 50%, 0.8); }
.carousel__cell:nth-child(1) { transform: rotateY( 0deg) translateZ(288px); }
.carousel__cell:nth-child(2) { transform: rotateY( 40deg) translateZ(288px); }
.carousel__cell:nth-child(3) { transform: rotateY( 80deg) translateZ(288px); }
.carousel__cell:nth-child(4) { transform: rotateY(120deg) translateZ(288px); }
.carousel__cell:nth-child(5) { transform: rotateY(160deg) translateZ(288px); }
.carousel__cell:nth-child(6) { transform: rotateY(200deg) translateZ(288px); }
.carousel__cell:nth-child(7) { transform: rotateY(240deg) translateZ(288px); }
.carousel__cell:nth-child(8) { transform: rotateY(280deg) translateZ(288px); }
.carousel__cell:nth-child(9) { transform: rotateY(320deg) translateZ(288px); }
</style>
</head>
<body>
<div class="scene">
<div class="carousel">
<div class="carousel__cell">1</div>
<div class="carousel__cell">2</div>
<div class="carousel__cell">3</div>
<div class="carousel__cell">4</div>
<div class="carousel__cell">5</div>
<div class="carousel__cell">6</div>
<div class="carousel__cell">7</div>
<div class="carousel__cell">8</div>
<div class="carousel__cell">9</div>
</div>
</div>
<p style="text-align: center;">
<button class="previous-button">Previous</button>
<button class="next-button">Next</button>
</p>
<script>
var carousel = document.querySelector('.carousel');
var cellCount = 9;
var selectedIndex = 0;
function rotateCarousel() {
var angle = selectedIndex / cellCount * -360;
carousel.style.transform = 'translateZ(-288px) rotateY(' + angle + 'deg)';
}
var prevButton = document.querySelector('.previous-button');
prevButton.addEventListener( 'click', function() {
selectedIndex--;
rotateCarousel();
});
var nextButton = document.querySelector('.next-button');
nextButton.addEventListener( 'click', function() {
selectedIndex++;
rotateCarousel();
});
</script>
</body>
</html>