在HTML中实现和使用遮罩层_html/css_WEB-ITnose
Web页面中使用遮罩层，可防止重复操作，提示loading；也可以模拟弹出模态窗口。
实现思路：一个DIV作为遮罩层，一个DIV显示loading动态GIF图片。在下面的示例代码中，同时展示了如何在iframe子页面中调用显示和隐藏遮罩层。
示例代码：
index.html
1 <!DOCTYPE html> 2 <html lang="zh-CN"> 3 <head> 4 <meta charset="utf-8"> 5 <meta http-equiv="X-UA-Commpatible" content="IE=edge"> 6 <title>HTML遮罩层</title> 7 <link rel="stylesheet" href="css/index.css"> 8 </head> 9 <body>10 <div class="header" id="header">11 <div class="title-outer">12 <span class="title">13 HTML遮罩层使用14 </span>15 </div>16 </div>17 <div class="body" id="body">18 <iframe id="iframeRight" name="iframeRight" width="100%" height="100%"19 scrolling="no" frameborder="0"20 style="border: 0px;margin: 0px; padding: 0px; width: 100%; height: 100%;overflow: hidden;"21 onload="rightIFrameLoad(this)" src="body.html"></iframe>22 </div>23 24 <!-- 遮罩层DIV -->25 <div id="overlay" class="overlay"></div>26 <!-- Loading提示 DIV -->27 <div id="loadingTip" class="loading-tip">28 <img src="/static/imghw/default1.png" data-src="images/loading.gif" class="lazy" / alt="在HTML中实现和使用遮罩层_html/css_WEB-ITnose" >29 </div>30 31 <!-- 模拟模态窗口DIV -->32 <div class="modal" id="modalDiv"></div>33 34 <script type='text/javascript' src="js/jquery-1.10.2.js"></script>35 <script type="text/javascript" src="js/index.js"></script>36 </body>37 </html>
index.css
1 * { 2 margin: 0; 3 padding: 0; 4 } 5 6 html, body { 7 width: 100%; 8 height: 100%; 9 font-size: 14px;10 }11 12 div.header {13 width: 100%;14 height: 100px;15 border-bottom: 1px dashed blue;16 }17 18 div.title-outer {19 position: relative;20 top: 50%;21 height: 30px;22 }23 span.title {24 text-align: left;25 position: relative;26 left: 3%;27 top: -50%;28 font-size: 22px;29 }30 31 div.body {32 width: 100%;33 }34 .overlay {35 position: absolute;36 top: 0px;37 left: 0px;38 z-index: 10001;39 display:none;40 filter:alpha(opacity=60);41 background-color: #777;42 opacity: 0.5;43 -moz-opacity: 0.5;44 }45 .loading-tip {46 z-index: 10002;47 position: fixed;48 display:none;49 }50 .loading-tip img {51 width:100px;52 height:100px;53 }54 55 .modal {56 position:absolute;57 width: 600px;58 height: 360px;59 border: 1px solid rgba(0, 0, 0, 0.2);60 box-shadow: 0px 3px 9px rgba(0, 0, 0, 0.5);61 display: none;62 z-index: 10003;63 border-radius: 6px;64 }index.js
1 function rightIFrameLoad(iframe) { 2 var pHeight = getWindowInnerHeight() - $('#header').height() - 5; 3 4 $('div.body').height(pHeight); 5 console.log(pHeight); 6 7 } 8 9 // 浏览器兼容 取得浏览器可视区高度 10 function getWindowInnerHeight() { 11 var winHeight = window.innerHeight 12 || (document.documentElement && document.documentElement.clientHeight) 13 || (document.body && document.body.clientHeight); 14 return winHeight; 15 16 } 17 18 // 浏览器兼容 取得浏览器可视区宽度 19 function getWindowInnerWidth() { 20 var winWidth = window.innerWidth 21 || (document.documentElement && document.documentElement.clientWidth) 22 || (document.body && document.body.clientWidth); 23 return winWidth; 24 25 } 26 27 /** 28 * 显示遮罩层 29 */ 30 function showOverlay() { 31 // 遮罩层宽高分别为页面内容的宽高 32 $('.overlay').css({'height':$(document).height(),'width':$(document).width()}); 33 $('.overlay').show(); 34 } 35 36 /** 37 * 显示Loading提示 38 */ 39 function showLoading() { 40 // 先显示遮罩层 41 showOverlay(); 42 // Loading提示窗口居中 43 $("#loadingTip").css('top', 44 (getWindowInnerHeight() - $("#loadingTip").height()) / 2 + 'px'); 45 $("#loadingTip").css('left', 46 (getWindowInnerWidth() - $("#loadingTip").width()) / 2 + 'px'); 47 48 $("#loadingTip").show(); 49 $(document).scroll(function() { 50 return false; 51 }); 52 } 53 54 /** 55 * 隐藏Loading提示 56 */ 57 function hideLoading() { 58 $('.overlay').hide(); 59 $("#loadingTip").hide(); 60 $(document).scroll(function() { 61 return true; 62 }); 63 } 64 65 /** 66 * 模拟弹出模态窗口DIV 67 * @param innerHtml 模态窗口HTML内容 68 */ 69 function showModal(innerHtml) { 70 // 取得显示模拟模态窗口用DIV 71 var dialog = $('#modalDiv'); 72 73 // 设置内容 74 dialog.html(innerHtml); 75 76 // 模态窗口DIV窗口居中 77 dialog.css({ 78 'top' : (getWindowInnerHeight() - dialog.height()) / 2 + 'px', 79 'left' : (getWindowInnerWidth() - dialog.width()) / 2 + 'px' 80 }); 81 82 // 窗口DIV圆角 83 dialog.find('.modal-container').css('border-radius','6px'); 84 85 // 模态窗口关闭按钮事件 86 dialog.find('.btn-close').click(function(){ 87 closeModal(); 88 }); 89 90 // 显示遮罩层 91 showOverlay(); 92 93 // 显示遮罩层 94 dialog.show(); 95 } 96 97 /** 98 * 模拟关闭模态窗口DIV 99 */100 function closeModal() {101 $('.overlay').hide();102 $('#modalDiv').hide();103 $('#modalDiv').html('');104 }body.html
1 <!DOCTYPE html> 2 <html lang="zh-CN"> 3 <head> 4 <meta charset="utf-8"> 5 <meta http-equiv="X-UA-Commpatible" content="IE=edge"> 6 <title>body 页面</title> 7 <style type="text/css"> 8 * { 9 margin: 0;10 padding: 0;11 }12 13 html, body {14 width: 100%;15 height: 100%;16 }17 18 .outer {19 width: 200px;20 height: 120px;21 position: relative;22 top: 50%;23 left: 50%;24 }25 26 .inner {27 width: 200px;28 height: 120px;29 position: relative;30 top: -50%;31 left: -50%;32 }33 34 .button {35 width: 200px;36 height: 40px;37 position: relative;38 }39 40 .button#btnShowLoading {41 top: 0;42 }43 44 .button#btnShowModal {45 top: 30%;46 }47 48 </style>49 <script type="text/javascript">50 51 function showOverlay() {52 // 调用父窗口显示遮罩层和Loading提示53 window.top.window.showLoading();54 55 // 使用定时器模拟关闭Loading提示56 setTimeout(function() {57 window.top.window.hideLoading();58 }, 3000);59 60 }61 62 function showModal() {63 // 调用父窗口方法模拟弹出模态窗口64 window.top.showModal($('#modalContent').html());65 }66 67 </script>68 </head>69 <body>70 <div class='outer'>71 <div class='inner'>72 <button id='btnShowLoading' class='button' onclick='showOverlay();'>点击弹出遮罩层</button>73 <button id='btnShowModal' class='button' onclick='showModal();'>点击弹出模态窗口</button>74 </div>75 </div>76 77 <!-- 模态窗口内容DIV，将本页面DIV内容设置到父窗口DIV上并模态显示 -->78 <div id='modalContent' style="max-width:90%">79 <div class='modal-container' style='width: 100%;height: 100%;background-color: white;'>80 <div style='width: 100%;height: 49px;position: relative;left: 50%;top: 50%;'>81 <span style='font-size: 36px; width: 100%; text-align:center; display: inline-block; position:inherit; left: -50%;top: -50%;'>模态窗口1</span>82 </div>83 <button class='btn-close' style='width: 100px; height: 30px; position: absolute; right: 30px; bottom: 20px;'>关闭</button>84 </div>85 </div>86 <script type='text/javascript' src="js/jquery-1.10.2.js"></script>87 </body>88 </html>运行结果
初始化
显示遮罩层和Loading提示
显示遮罩层和模拟弹出模态窗口
END
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
Is HTML easy to learn for beginners?
Apr 07, 2025 am 12:11 AM
HTML is suitable for beginners because it is simple and easy to learn and can quickly see results. 1) The learning curve of HTML is smooth and easy to get started. 2) Just master the basic tags to start creating web pages. 3) High flexibility and can be used in combination with CSS and JavaScript. 4) Rich learning resources and modern tools support the learning process.
The Roles of HTML, CSS, and JavaScript: Core Responsibilities
Apr 08, 2025 pm 07:05 PM
HTML defines the web structure, CSS is responsible for style and layout, and JavaScript gives dynamic interaction. The three perform their duties in web development and jointly build a colorful website.
Understanding HTML, CSS, and JavaScript: A Beginner's Guide
Apr 12, 2025 am 12:02 AM
WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.
Gitee Pages static website deployment failed: How to troubleshoot and resolve single file 404 errors?
Apr 04, 2025 pm 11:54 PM
GiteePages static website deployment failed: 404 error troubleshooting and resolution when using Gitee...
What is an example of a starting tag in HTML?
Apr 06, 2025 am 12:04 AM
AnexampleofastartingtaginHTMLis,whichbeginsaparagraph.StartingtagsareessentialinHTMLastheyinitiateelements,definetheirtypes,andarecrucialforstructuringwebpagesandconstructingtheDOM.
How to use CSS3 and JavaScript to achieve the effect of scattering and enlarging the surrounding pictures after clicking?
Apr 05, 2025 am 06:15 AM
To achieve the effect of scattering and enlarging the surrounding images after clicking on the image, many web designs need to achieve an interactive effect: click on a certain image to make the surrounding...
HTML, CSS, and JavaScript: Essential Tools for Web Developers
Apr 09, 2025 am 12:12 AM
HTML, CSS and JavaScript are the three pillars of web development. 1. HTML defines the web page structure and uses tags such as, etc. 2. CSS controls the web page style, using selectors and attributes such as color, font-size, etc. 3. JavaScript realizes dynamic effects and interaction, through event monitoring and DOM operations.
How to implement adaptive layout of Y-axis position in web annotation?
Apr 04, 2025 pm 11:30 PM
The Y-axis position adaptive algorithm for web annotation function This article will explore how to implement annotation functions similar to Word documents, especially how to deal with the interval between annotations...
