如何使用 CSS 和 JavaScript 创建模态图库?

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以下是使用 CSS 和 JavaScript 创建模态图库的代码 −

示例

<!DOCTYPE html>
<html>
<head<
<meta name="viewport" content="width=device-width, initial-scale=1" /<
<style>
* {
   box-sizing: border-box;
}
h1 {
   text-align: center;
}
.ImgThumbnail {
   border-radius: 5px;
   cursor: pointer;
   transition: 0.3s;
   height: 250px;
   width: 250px;
}
.ImgThumbnail:nth-of-type(1) {
   margin-left: 20%;
}
.modal {
   display: none;
   position: fixed;
   z-index: 1;
   padding-top: 100px;
   left: 0;
   top: 0;
   width: 100%;
   height: 100%;
   overflow: auto;
   background-color: rgb(0, 0, 0);
   background-color: rgba(0, 0, 0, 0.9);
}
.modalImage {
   margin: auto;
   display: block;
   width: 50%;
   height: 60%;
   max-width: 700px;
}
#caption {
   margin: auto;
   display: block;
   width: 80%;
   max-width: 700px;
   text-align: center;
   color: #ccc;
   padding: 10px 0;
   height: 150px;
}
.close {
   position: absolute;
   top: 15px;
   right: 35px;
   color: #f1f1f1;
   font-size: 40px;
   font-weight: bold;
   transition: 0.3s;
}
.close:hover,
.close:focus {
   color: rgb(255, 0, 0);
   cursor: pointer;
}
@media only screen and (max-width: 700px) {
   .modalImage {
      width: 100%;
   }
}
</style>
</head>
<body>
<h1<Image Modal Gallery Example</h1<
<img class="ImgThumbnail" src="https://images.pexels.com/photos/3540375/pexels-photo-3540375.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940"/>
<img class="ImgThumbnail" src="https://i.picsum.photos/id/237/536/354.jpg"/>
<img class="ImgThumbnail" src="https://images.pexels.com/photos/3802510/pexels-photo-3802510.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500"/>
<div class="modal">
<span class="close>×</span>
<img class="modalImage" id="img01" />
</div>
<script>
var modalEle = document.querySelector(".modal");
var modalImage = document.querySelector(".modalImage");
Array.from(document.querySelectorAll(".ImgThumbnail")).forEach(item => {
   item.addEventListener("click", event => {
      modalEle.style.display = "block";
      modalImage.src = event.target.src;
   });
});
document.querySelector(".close").addEventListener("click", () => {
   modalEle.style.display = "none";
});
</script>
</body>
</html>