<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> </head> <body> <style> #myImg { border-radius: 5px; cursor: pointer; transition: 0.3s; } #myImg:hover {opacity: 0.7;} /* The Modal (background) */ .modal { display: none; /* Hidden by default */ position: fixed; /* Stay in place */ z-index: 1; /* Sit on top */ padding-top: 100px; /* Location of the box */ left: 0; top: 0; width: 100%; /* Full width */ height: 100%; /* Full height */ overflow: auto; /* Enable scroll if needed */ background-color: rgb(0,0,0); /* Fallback color */ background-color: rgba(0,0,0,0.9); /* Black w/ opacity */ } /* Modal Content (image) */ .modal-content { margin: auto; display: block; width: 80%; max-width: 700px; } /* Caption of Modal Image */ #caption { margin: auto; display: block; width: 80%; max-width: 700px; text-align: center; color: #ccc; padding: 10px 0; height: 150px; } /* Add Animation */ .modal-content, #caption { -webkit-animation-name: zoom; -webkit-animation-duration: 0.6s; animation-name: zoom; animation-duration: 0.6s; } @-webkit-keyframes zoom { from {-webkit-transform: scale(0)} to {-webkit-transform: scale(1)} } @keyframes zoom { from {transform: scale(0.1)} to {transform: scale(1)} } /* The Close Button */ .close { position: absolute; top: 15px; right: 35px; color: #f1f1f1; font-size: 40px; font-weight: bold; transition: 0.3s; } .close:hover, .close:focus { color: #bbb; text-decoration: none; cursor: pointer; } /* 100% Image Width on Smaller Screens */ @media only screen and (max- 700px){ .modal-content { width: 100%; } } </style> </head> <body> <h2>图片模态框</h2> <p>本实例演示了如何结合 CSS 和 JavaScript 来一起渲染图片。</p><p> 首先，我们使用 CSS 来创建 modal 窗口 (对话框), 默认是隐藏的。<p> <p>然后，我们使用 JavaScript 来显示模态窗口，当我们点击图片时，图片会在弹出的窗口中显示：</p> <img id="myImg" src="//www.runoob.com/wp-content/uploads/2016/04/img_lights.jpg" alt="Northern Lights, Norway" width="300" height="200"> <!-- The Modal --> <div id="myModal" class="modal"> <span class="close">×</span> <img class="modal-content" id="img01"> <div id="caption"></div> </div> <script> // 获取模态窗口 var modal = document.getElementById('myModal'); // 获取图片模态框，alt 属性作为图片弹出中文本描述 var img = document.getElementById('myImg'); var modalImg = document.getElementById("img01"); var captionText = document.getElementById("caption"); img.onclick = function(){ modal.style.display = "block"; modalImg.src = this.src; modalImg.alt = this.alt; captionText.innerHTML = this.alt; } // 获取 <span> 元素，设置关闭模态框按钮 var span = document.getElementsByClassName("close")[0]; // 点击 <span> 元素上的 (x), 关闭模态框 span.onclick = function() { modal.style.display = "none"; } </script> </body> </html> <!-- filter: blur(5px);给图像设置高斯模糊 filter: brightness(0.4);给图片应用一种线性乘法，使其看起来更亮或更暗 filter: contrast(200%);调整图像的对比度 filter: drop-shadow(16px 16px 20px blue);给图像设置一个阴影效果 filter: grayscale(50%);给图像设置高斯模糊 filter: hue-rotate(90deg);给图像应用色相旋转 filter: invert(75%);反转输入图像 filter: opacity(25%); filter: saturate(30%);转换图像饱和度。 filter: sepia(60%);将图像转换为深褐色 -->