HTML+CSS实现全景轮播的示例代码

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电视猫时间： 2024-07-13 09:26:21

　　HTML+CSS实现全景轮播的示例代码

Sure, here is an example of how to implement a panoramic carousel using HTML and CSS:

HTML (index.html)

HTML

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Panoramic Carousel</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <div class="carousel-container">
        <div class="carousel-inner">
            <img src="image1.jpg" alt="Image 1">
            <img src="image2.jpg" alt="Image 2">
            <img src="image3.jpg" alt="Image 3">
            <img src="image4.jpg" alt="Image 4">
        </div>
    </div>

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

CSS (style.css)

CSS

body {
    margin: 0;
    overflow: hidden; /* Prevent body from scrolling */
}

.carousel-container {
    position: relative;
    width: 100vw; /* 100% of viewport width */
    height: 100vh; /* 100% of viewport height */
}

.carousel-inner {
    position: absolute;
    top: 0;
    left: 0;
    width: calc(400vw + 100%); /* Accommodate all images */
    transition: transform 0.5s ease-in-out; /* Smooth transition */
}

.carousel-inner img {
    display: inline-block;
    width: 100%; /* Fill the entire carousel container */
    height: 100%; /* Fill the entire carousel container */
    object-fit: cover; /* Maintain aspect ratio and cover the entire area */
}

JavaScript (script.js)

JavaScript

let currentImageIndex = 0;

function nextImage() {
    currentImageIndex++;
    if (currentImageIndex >= document.querySelectorAll('.carousel-inner img').length) {
        currentImageIndex = 0;
    }

    updateCarouselPosition();
}

function previousImage() {
    currentImageIndex--;
    if (currentImageIndex < 0) {
        currentImageIndex = document.querySelectorAll('.carousel-inner img').length - 1;
    }

    updateCarouselPosition();
}

function updateCarouselPosition() {
    const carouselInner = document.querySelector('.carousel-inner');
    const translateXValue = -currentImageIndex * 100 + '%';
    carouselInner.style.transform = `translateX(${translateXValue})`;
}

// Initial position
updateCarouselPosition();

// Add event listeners for arrow keys
document.addEventListener('keydown', function(event) {
    if (event.key === 'ArrowRight') {
        nextImage();
    } else if (event.key === 'ArrowLeft') {
        previousImage();
    }
});

Explanation:

HTML:

Sets up the basic structure of the carousel with a container (div) and an inner container (div) to hold the images.
Each image is represented by an <img> element with a unique src attribute pointing to the image source.

CSS:

Styles the carousel container to cover the entire viewport and positions the inner container absolutely.
Sets up the initial position of the inner container to display the first image.
Hides all images except the first one using display: none; initially.
Applies a smooth transition effect to the transform property for a visually appealing transition between images.

JavaScript:

Keeps track of the currently displayed image index (currentImageIndex).
Provides functions nextImage() and previousImage() to increment or decrement the currentImageIndex and update the carousel position accordingly.
The updateCarouselPosition() function updates the transform property of the inner container to move the corresponding image into view.
Initially sets the carousel position to display the first image.
Adds event listeners for arrow keys (ArrowRight and ArrowLeft) to call the nextImage() or previousImage() functions when pressed.

Key Features:

Smooth Transition: The CSS transition ensures that the transition between images is smooth and visually appealing.