本文为大家介绍如何使用 HTML、JavaScript 与 CSS 来创建 Lightbox 类似相册预览功能。

HTML 代码：

<!-- 图片改为你的图片地址 --><h2 style="text-align:center">Lightbox</h2><div class="row"><div class="column"><img src="http://static.facesoho.com/images/demo/demo1.jpg" style="width:100%" onclick="openModal();currentSlide(1)" class="hover-shadow cursor"></div><div class="column"><img src="http://static.facesoho.com/images/demo/demo2.jpg" style="width:100%" onclick="openModal();currentSlide(2)" class="hover-shadow cursor"></div><div class="column"><img src="http://static.facesoho.com/images/demo/demo3.jpg" style="width:100%" onclick="openModal();currentSlide(3)" class="hover-shadow cursor"></div><div class="column"><img src="http://static.facesoho.com/images/demo/demo4.jpg" style="width:100%" onclick="openModal();currentSlide(4)" class="hover-shadow cursor"></div></div><div id="myModal" class="modal"><span class="close cursor" onclick="closeModal()">&times;</span><div class="modal-content"><div class="mySlides"><div class="numbertext">1 / 4</div><img src="http://static.facesoho.com/images/demo/demo1.jpg" style="width:100%"></div><div class="mySlides"><div class="numbertext">2 / 4</div><img src="http://static.facesoho.com/images/demo/demo2.jpg" style="width:100%"></div><div class="mySlides"><div class="numbertext">3 / 4</div><img src="http://static.facesoho.com/images/demo/demo3.jpg" style="width:100%"></div><div class="mySlides"><div class="numbertext">4 / 4</div><img src="http://static.facesoho.com/images/demo/demo4.jpg" style="width:100%"></div><a class="prev" onclick="plusSlides(-1)">&#10094;</a><a class="next" onclick="plusSlides(1)">&#10095;</a><div class="caption-container"><p id="caption"></p></div><div class="column"><img class="demo cursor" src="http://static.facesoho.com/images/demo/demo1.jpg" style="width:100%" onclick="currentSlide(1)" alt="Nature and sunrise"></div><div class="column"><img class="demo cursor" src="http://static.facesoho.com/images/demo/demo2.jpg" style="width:100%" onclick="currentSlide(2)" alt="Trolltunga, Norway"></div><div class="column"><img class="demo cursor" src="http://static.facesoho.com/images/demo/demo3.jpg" style="width:100%" onclick="currentSlide(3)" alt="Mountains and fjords"></div><div class="column"><img class="demo cursor" src="http://static.facesoho.com/images/demo/demo4.jpg" style="width:100%" onclick="currentSlide(4)" alt="Northern Lights"></div></div></div>

CSS 代码：

body {font-family: Verdana, sans-serif;margin: 0;}* {box-sizing: border-box;}.row > .column {padding: 0 8px;}.row:after {content: "";display: table;clear: both;}.column {float: left;width: 25%;}/* 弹窗背景 */.modal {display: none;position: fixed;z-index: 1;padding-top: 100px;left: 0;top: 0;width: 100%;height: 100%;overflow: auto;background-color: black;}/* 弹窗内容 */.modal-content {position: relative;background-color: #fefefe;margin: auto;padding: 0;width: 90%;max-width: 1200px;}/* 关闭按钮 */.close {color: white;position: absolute;top: 10px;right: 25px;font-size: 35px;font-weight: bold;}.close:hover,.close:focus {color: #999;text-decoration: none;cursor: pointer;}.mySlides {display: none;}.cursor {cursor: pointer}/* 上一页 & 下一页 按钮 */.prev,.next {cursor: pointer;position: absolute;top: 50%;width: auto;padding: 16px;margin-top: -50px;color: white;font-weight: bold;font-size: 20px;transition: 0.6s ease;border-radius: 0 3px 3px 0;user-select: none;-webkit-user-select: none;}/* 定位下一页按钮到右侧 */.next {right: 0;border-radius: 3px 0 0 3px;}/* 鼠标移动上去修改背景色为黑色 */.prev:hover,.next:hover {background-color: rgba(0, 0, 0, 0.8);}/* 页数(1/3 etc) */.numbertext {color: #f2f2f2;font-size: 12px;padding: 8px 12px;position: absolute;top: 0;}img {margin-bottom: -4px;}.caption-container {text-align: center;background-color: black;padding: 2px 16px;color: white;}.demo {opacity: 0.6;}.active,.demo:hover {opacity: 1;}img.hover-shadow {transition: 0.3s}.hover-shadow:hover {box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19)}

JavaScript 代码：

function openModal() {document.getElementById('myModal').style.display = "block";}function closeModal() {document.getElementById('myModal').style.display = "none";}var slideIndex = 1;showSlides(slideIndex);function plusSlides(n) {showSlides(slideIndex += n);}function currentSlide(n) {showSlides(slideIndex = n);}function showSlides(n) {var i;var slides = document.getElementsByClassName("mySlides");var dots = document.getElementsByClassName("demo");var captionText = document.getElementById("caption");if (n > slides.length) {slideIndex = 1}if (n < 1) {slideIndex = slides.length}for (i = 0; i < slides.length; i++) {slides[i].style.display = "none";}for (i = 0; i < dots.length; i++) {dots[i].className = dots[i].className.replace(" active", "");}slides[slideIndex-1].style.display = "block";dots[slideIndex-1].className += " active";captionText.innerHTML = dots[slideIndex-1].alt;}

在线演示