网页交互效果的实现
滚动条高度的获取以及设置：document.body.scrollTop || document.documentElement.scrollTop
.split() 把字符串分割成数组
.join() 把数组转为字符串
.replace( /s+/g, " ") 正则全局替换，把多个空格符替换为一个空格符
综合效果
index.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <link rel="stylesheet" href="base.css"> <link rel="stylesheet" href="style.css"> <link rel="stylesheet" href="animate.css"> </head> <body> <!-- 头部 --> <header> <div class="header-wrap"> <div class="header-logo">微课手机</div> <nav class="header-nav"> <a href="javascript:void(0);" class="header-nav-item">外观</a> <a href="javascript:void(0);" class="header-nav-item">配置</a> <a href="javascript:void(0);" class="header-nav-item">型号</a> <a href="javascript:void(0);" class="header-nav-item">说明</a> <a href="javascript:void(0);" class="header-nav-item">其他</a> <a href="javascript:void(0);" class="header-nav-item header-nav-item-button">立即购买</a> <div class="header-nav-tip"></div> </nav> </header> <!-- 第一屏 --> <div class="screen-1"> <h2 class="screen-1-heading screen-1-heading-init"><span>微课手机</span> 让你的生活更精彩</h2> <div class="screen-1-phone screen-1-phone-init"></div> <div class="screen-1-shadow screen-1-shadow-init"></div> </div> <!-- 第二屏 --> <div class="screen-2"> <div class="screen-2-wrap"> <h2 class="screen-2-heading">优美的设计，更令人着迷</h2> <h4 class="screen-2-subheading">采用受欢迎的设计，让它更加出色。<br>款式小巧、轻便手感更舒适。绚丽高清的显示屏，整个外观显得格外精致。</h4> <div class="screen-2-phone"> <div class="screen-2-point screen-2-point-i1">高清摄像</div> <div class="screen-2-point screen-2-point-right screen-2-point-i2">超薄机身</div> <div class="screen-2-point screen-2-point-right screen-2-point-i3">大屏显示</div> </div> </div> </div> <!-- 第三屏 --> <div class="screen-3"> <div class="screen-3-wrap"> <h2 class="screen-3-heading">优美的设计，更令人着迷</h2> <h4 class="screen-3-subheading">采用受欢迎的设计，让它更加出色。<br>款式小巧、轻便手感更舒适。绚丽高清的显示屏，整个外观显得格外精致。</h4> <div class="screen-3-phone"></div> <div class="screen-3-detail"> <div class="screen-3-detail-item"> <div class="screen-3-detail-num">5.7</div> <div class="screen-3-detail-desc">英寸大屏</div> </div> <div class="screen-3-detail-item"> <div class="screen-3-detail-num">1200</div> <div class="screen-3-detail-desc">万像素</div> </div> <div class="screen-3-detail-item"> <div class="screen-3-detail-num">3D</div> <div class="screen-3-detail-desc">Touch</div> </div> <div class="screen-3-detail-item"> <div class="screen-3-detail-num">A9</div> <div class="screen-3-detail-desc">处理器</div> </div> </div> </div> </div> <!-- 第四屏 --> <div class="screen-4"> <div class="screen-4-wrap"> <h2 class="screen-4-heading">丰富的手机型号</h2> <h4 class="screen-4-subheading">找到适合你的手机</h4> <div class="screen-4-phone"> <div class="screen-4-phone-item screen-4-phone-i1"> <div class="screen-4-phone-color">微课红</div> <div class="screen-4-phone-model">32G/64G/138G</div> </div> <div class="screen-4-phone-item screen-4-phone-i2"> <div class="screen-4-phone-color">土豪金</div> <div class="screen-4-phone-model">32G/64G/138G</div> </div> <div class="screen-4-phone-item screen-4-phone-i3"> <div class="screen-4-phone-color">太空灰</div> <div class="screen-4-phone-model">32G/64G/138G</div> </div> <div class="screen-4-phone-item screen-4-phone-i4"> <div class="screen-4-phone-color">绅士黑</div> <div class="screen-4-phone-model">32G/64G/138G</div> </div> </div> </div> </div> <!-- 第五屏 --> <div class="screen-5"> <h2 class="screen-5-heading">游戏、学习、拍照，有这一部就够了</h2> <h4 class="screen-5-subheading"> 看视频、拍摄高清视频与照片、视频聊天、通话相结合，一机多功能，让您生活更丰富精彩。 </h4> <div class="screen-5-bg"></div> </div> <!-- 第六屏 --> <div class="screen-6"> <button class="screen-6-btn">立即购买</button> </div> <!-- 底部 --> <footer>© 2020 test.com 浙ICP备00000000号</footer> <!-- 侧导航 --> <div class="outline"> <a href="javascript:void(0)" class="outline-item">外观</a> <a href="javascript:void(0)" class="outline-item">配置</a> <a href="javascript:void(0)" class="outline-item">型号</a> <a href="javascript:void(0)" class="outline-item">说明</a> <a href="javascript:void(0)" class="outline-item">其它</a> </div> <script src="index.js"></script> </body> </html>
base.css
*{ margin:0; padding:0; } a{ text-decoration: none; color:#44484d; } ul{ list-style:none; } body{ color:#44484d; } h2{ font-size:48px; font-weight:lighter; padding-top:81px; padding-bottom:15px; } h4{ font-size:16px; line-height:30px; font-weight:normal; padding-bottom:15px; } /*# sourceMappingURL=base.css.map */
style.css
/*头部*/ header{ background:#f7f7f7; width:100%; height:80px; transition:all 1s; } .header-black{ background-color: rgba(0,0,0,.5); position: fixed; top:0; z-index:5; color:#fff; } .header-black a{ color:#fff; } .header-wrap{ width:1200px; height:100%; margin:0 auto; position: relative; } .header-logo{ width:140px; height:39px; margin-left:24px; background:url(img/logo.png) left center no-repeat; background-size:39px 39px; text-indent:51px; line-height:39px; position: absolute; top:50%; margin-top:-20px; font-size:20px; } .header-nav{ position: absolute; right:24px; height:39px; line-height:39px; top:50%; margin-top:-20px; font-size:14px; } /*滑动门特效*/ .header-nav-tip{ position: absolute; bottom:-3px; left:0; width:30px; height:2px; background-color: #f04747; margin-left:45px; transition:all .5s; } .header-nav-item{ display: block; float:left; padding-left:45px; width:30px; } .header-nav-item:hover{ color:#f04747; } .header-nav-item-active{ color:#f04747 !important; position: relative; } .header-nav-item-button{ width:90px; height:39px; background-color:#07111b; color:#f4f4f5; text-align: center; border-radius:3px; padding-left:0; margin-left:45px; } /*第一屏*/ .screen-1{ width:100%; height:795px; background:url(img/screen-1-bg.png) no-repeat; background-size:cover; text-align: center; position: relative; } .screen-1-heading{ padding-top:138px; padding-bottom:94px; color:#4d555d; } .screen-1-heading span{ color:#f04747; } .screen-1-phone{ background:url(img/screen-1-phone.png) center no-repeat; width:1375px; height:305px; left:50%; margin-left:-687px; position: absolute; bottom:180px; z-index:2; } .screen-1-shadow{ background:url(img/screen-1-shadow.png) center no-repeat; width:1183px; height:367px; left:50%; margin-left:-591px; position: absolute; bottom:30px; z-index:1; } /*第二屏*/ .screen-2{ width:100%; height:800px; background:#fafafa; } .screen-2-wrap{ width:1200px; height:100%; margin:0 auto; text-align: center; position: relative; overflow:hidden; } .screen-2-heading{ color:#f04747; } .screen-2-subheading{ color:#4d555d; } .screen-2-phone{ background:url(img/screen-2-phone.png) center no-repeat; width:928px; height:530px; left:50%; margin-left:-464px; position: absolute; bottom:0; } .screen-2-point{ font-weight:lighter; width:104px; padding-right:97px; background:url(img/screen-2-point-left.png) center right no-repeat; position: absolute; } .screen-2-point-right{ padding-right:0; padding-left:97px; background:url(img/screen-2-point-right.png) center left no-repeat; } .screen-2-point-i1{ top:160px; left:-153px; } .screen-2-point-i2{ top:40px; right:150px; } .screen-2-point-i3{ top:340px; right:40px; } /*第三屏*/ .screen-3{ width:100%; height:800px; background:#fafafa; background:url(img/screen-3-bg.png) no-repeat; background-size:cover; position: relative; } .screen-3-wrap{ width:1200px; padding:0 50px; height:100%; margin:0 auto; position: relative; color:#fff; overflow:hidden; } .screen-3-phone{ background:url(img/screen-3-phone.png) top right no-repeat; width:767px; height:576px; right:0; position: absolute; bottom:0; } .screen-3-detail{ margin-top:152px; width:333px; } .screen-3-detail-item{ width:140px; height:127px; border:1px solid #cd6d6f; float:left; border-radius:3px; margin-right:24px; text-align: center; margin-bottom:18px; } .screen-3-detail-num{ font-size:48px; line-height:48px; padding-top:24px; } .screen-3-detail-desc{ padding-top:5px; } /*第四屏*/ .screen-4{ width:100%; height:800px; } .screen-4-wrap{ width:1200px; height:100%; margin:0 auto; position: relative; text-align: center; z-index:2; } .screen-4-heading{ padding-top:120px; padding-bottom:21px; color:#f04747; } .screen-4-subheading{ padding-bottom:55px; } .screen-4-phone{ width:1148px; height:355px; } .screen-4-phone-item{ width:218px; height:355px; margin-right:92px; float:left; background:url(img/screen-4-phone.png) -26px top no-repeat; } .screen-4-phone-i1{ background-position:-25px 0; } .screen-4-phone-i2{ background-position:-301px 0; } .screen-4-phone-i3{ background-position:-574px 0; } .screen-4-phone-i4{ background-position:-846px 0; margin-right:0; } .screen-4-phone-color{ padding-top:307px; font-size:16px; } .screen-4-phone-model{ padding-top:9px; font-size:12px; color:#d8dadc; } /*第五屏*/ .screen-5{ width:100%; height:800px; background-color: #d9dde1; text-align: center; position: relative; overflow:hidden; } .screen-5-heading{ padding-top:120px; padding-bottom:21px; color:#f04747; } .screen-5-subheading{ padding-bottom:55px; } .screen-5-bg{ width:1918px; height:433px; position: absolute; bottom:0; left:50%; margin-left:-959px; background:url(img/screen-5-bg.png) center no-repeat; } /*第六屏*/ .screen-6{ width:100%; height:202px; background-color: #d9ddd1; background:url(img/screen-6-bg.png); text-align: center; padding-top:118px; } .screen-6-btn{ width:243px; height:78px; line-height:78px; text-align: center; background:#f01414; color:#fff; border-radius:3px; font-size:24px; font-weight:lighter; border:none; box-shadow:0 0 10px rgba(0,0,0,.5); display: inline-block; cursor:pointer; } /*底部*/ footer{ text-align: center; color:#fff; width:100%; height:80px; line-height:80px; background-color: #07111b; font-size:12px; font-weight:lighter; } /*侧导航*/ .outline{ position: fixed; right:0; bottom:160px; background-color: #fff; padding:0 10px; transition:all 1s; opacity: 0; transform:translate(100%,0); } .outline-in{ opacity: 1; transform:translate(0,0); } .outline-item{ display: block; height:47px; line-height:47px; width:27px; text-align: center; font-size:12px; border-top:1px solid #edf1f2; } .outline-item:first-child{ border-top:0; } .outline-item-active{ color:red; } /*# sourceMappingURL=style.css.map */
animate.css
/*第一屏*/ .screen-1-heading{ transition:all 1s; } .screen-1-heading-init{ opacity: 0;transform:translate(0,100%); } .screen-1-heading-done{ opacity: 1;transform:translate(0,0); } .screen-1-phone{ transition:all 1s; } .screen-1-phone-init{ opacity: 0;transform:translate(0,-100%); } .screen-1-phone-done{ opacity: 1;transform:translate(0,0); } .screen-1-shadow{ transition:all 1s; } .screen-1-shadow-init{ opacity: 0;transform:translate(0,-100%); } .screen-1-shadow-done{ opacity: 1;transform:translate(0,0); } /*第二屏*/ .screen-2-heading{ transition:all 1s; } .screen-2-heading-init{ opacity: 0;transform:translate(0,-100%); } .screen-2-heading-done{ opacity: 1;transform:translate(0,0); } .screen-2-subheading{ transition:all 1s; } .screen-2-subheading-init{ opacity: 0;transform:translate(0,100%); } .screen-2-subheading-done{ opacity: 1;transform:translate(0,0); } .screen-2-phone{ transition:all 1s; } .screen-2-phone-init{ opacity: 0;transform:translate(0,100%); } .screen-2-phone-done{ opacity: 1;transform:translate(0,0); } .screen-2-point{ transition:all 1s .5s; } .screen-2-point-i1-init{ opacity: 0;transform:translate(-100%,0); } .screen-2-point-i1-done{ opacity: 1;transform:translate(0,0); } .screen-2-point-i2-init{ opacity: 0;transform:translate(100%,0); } .screen-2-point-i2-done{ opacity: 1;transform:translate(0,0); } .screen-2-point-i3-init{ opacity: 0;transform:translate(100%,0); } .screen-2-point-i3-done{ opacity: 1;transform:translate(0,0); } /*圆点呼吸动画*/ .screen-2-point::before, .screen-2-point::after{ content:""; display: block; width:20px; height:20px; position: absolute; top:0; left:0; background-color:rgba(255,0,0,.5); border-radius:50%; animation:bounce 2s infinite; } .screen-2-point::before{ animation:bounce 2s infinite 1s; } .screen-2-point-i1::before, .screen-2-point-i1::after{ top:0; left:auto; right:0; } @keyframes bounce{ 0%,100%{ transform:scale(0); } 50%{ transform:scale(1); } } /*第三屏*/ .screen-3-heading{ transition:all 1s; } .screen-3-heading-init{ opacity: 0;transform:translate(0,-100%); } .screen-3-heading-done{ opacity: 1;transform:translate(0,0); } .screen-3-subheading{ transition:all 1s; } .screen-3-subheading-init{ opacity: 0;transform:translate(0,100%); } .screen-3-subheading-done{ opacity: 1;transform:translate(0,0); } .screen-3-phone{ transition:all 1s; } .screen-3-phone-init{ opacity: 0;transform:translate(0,100%); } .screen-3-phone-done{ opacity: 1;transform:translate(0,0); } .screen-3-detail{ transition:all 1s; } .screen-3-detail-init{ opacity: 0;transform:scale(.5); } .screen-3-detail-done{ opacity: 1;transform:scale(1); } /*鼠标悬停时放大效果*/ .screen-3-detail-item{ transition: all .5s;cursor: pointer; } .screen-3-detail-item:hover{ transform:scale(1.1);border-color:#fff; } /*第四屏*/ .screen-4-heading{ transition:all 1s; } .screen-4-heading-init{ opacity: 0;transform:translate(0,-100%); } .screen-4-heading-done{ opacity: 1;transform:translate(0,0); } .screen-4-subheading{ transition:all 1s; } .screen-4-subheading-init{ opacity: 0;transform:translate(0,100%); } .screen-4-subheading-done{ opacity: 1;transform:translate(0,0); } .screen-4-phone-i1{ transition:all 1s .5s; } .screen-4-phone-i1-init{ opacity: 0; } .screen-4-phone-i1-done{ opacity: 1; } .screen-4-phone-i2{ transition:all 1s 1s; } .screen-4-phone-i2-init{ opacity: 0; } .screen-4-phone-i2-done{ opacity: 1; } .screen-4-phone-i3{ transition:all 1s 1.5s; } .screen-4-phone-i3-init{ opacity: 0; } .screen-4-phone-i3-done{ opacity: 1; } .screen-4-phone-i4{ transition:all 1s 2s; } .screen-4-phone-i4-init{ opacity: 0; } .screen-4-phone-i4-done{ opacity: 1; } /*第五屏*/ .screen-5-heading{ transition:all 1s; } .screen-5-heading-init{ opacity: 0;transform:translate(0,-100%); } .screen-5-heading-done{ opacity: 1;transform:translate(0,0); } .screen-5-subheading{ transition:all 1s; } .screen-5-subheading-init{ opacity: 0;transform:translate(0,100%); } .screen-5-subheading-done{ opacity: 1;transform:translate(0,0); } .screen-5-bg{ transition:all 1s; } .screen-5-bg-init{ opacity: 0;transform:translate(0,100%); } .screen-5-bg-done{ opacity: 1;transform:translate(0,0); } /*# sourceMappingURL=animate.css.map */
index.js
// 函数封装 //获取元素 function getEle(selector){ return document.querySelector(selector); } //获取所有元素 function getAllEle(selector){ return document.querySelectorAll(selector); } //获取元素样式 function getCls(element){ return element.getAttribute("class"); } //设置元素样式 function setCls(element, cls){ element.setAttribute("class", cls); } //添加元素样式 function addCls(element, cls){ var baseCls=getCls(element); if(baseCls.indexOf(cls)===-1){ setCls(element, baseCls+" "+cls); } } //删除元素样式 function delCls(element, cls){ var baseCls=getCls(element); if(baseCls.indexOf(cls)!=-1){ //用cls作为分隔符来分割字符串 //全局替换，把多个空白符提换为一个空白符 setCls(element, baseCls.split(cls).join(" ").replace(/s+/g," ")); } } // 需要设置动画的元素 var animateElements={ ".screen-1":[ ".screen-1-heading", ".screen-1-phone", ".screen-1-shadow" ], ".screen-2":[ ".screen-2-heading", ".screen-2-subheading", ".screen-2-phone", ".screen-2-point-i1", ".screen-2-point-i2", ".screen-2-point-i3" ], ".screen-3":[ ".screen-3-heading", ".screen-3-subheading", ".screen-3-phone", ".screen-3-detail" ], ".screen-4":[ ".screen-4-heading", ".screen-4-subheading", ".screen-4-phone-i1", ".screen-4-phone-i2", ".screen-4-phone-i3", ".screen-4-phone-i4" ], ".screen-5":[ ".screen-5-heading", ".screen-5-subheading", ".screen-5-bg" ] } //页面加载完成后，设置样式初始化 function setAnimateInit(screenName){//屏的类名，如： ".screen-1" var screen=document.querySelector(screenName);//获取哪一屏 var screenEles=animateElements[screenName];//获取该屏下要动画的所有元素 for(var i=0,len=screenEles.length;i<len;i++){ var newCls=screenEles[i].substr(1)+"-init"; var screenEle=document.querySelector(screenEles[i]);//某个要动画的元素 var baseCls=screenEle.getAttribute("class");//获取原来的类 screenEle.setAttribute("class", baseCls+" "+newCls);//添加init类 } return; } window.onload=function(){ for(k in animateElements){ if(k===".screen-1"){ continue;//跳过第一屏 } setAnimateInit(k); } } //单独设置第一屏动画 setTimeout(function(){ setAnimateDone(".screen-1"); },200); var headerItems=getAllEle(".header-nav-item"); var outlineItems=getAllEle(".outline-item"); function headerActive(index){ for(var i=0,len=headerItems.length;i<len;i++){ delCls(headerItems[i], "header-nav-item-active"); } addCls(headerItems[index], "header-nav-item-active"); } function outlineActive(index){ for(var i=0,len=outlineItems.length;i<len;i++){ delCls(outlineItems[i], "outline-item-active"); } addCls(outlineItems[index], "outline-item-active"); } headerActive(0);//导航变红 outlineActive(0);//侧导航变红 //导航侧导航的双向绑定 for(var i=0,len=headerItems.length;i<len;i++){ setJump(i, headerItems);//调用跳转函数 } for(var i=0,len=outlineItems.length;i<len;i++){ setJump(i, outlineItems);//调用跳转函数 } function setJump(i, item){ item[i].onclick=function(){ document.body.scrollTop=i*800; document.documentElement.scrollTop=i*800; } } //滑动门特效 var headerTip=getEle(".header-nav-tip"); for(var i=0,len=headerItems.length-1;i<len;i++){ moveAnimate(i,headerItems); } function moveAnimate(i,lib){ lib[i].onmouseover=function(){ headerTip.style.left=(i*75)+"px"; } } //页面滚动到哪里，就播放到哪里 function setAnimateDone(screenName){ var screen=document.querySelector(screenName);//获取哪一屏 var screenEles=animateElements[screenName];//获取该屏下要动画的所有元素 for(var i=0,len=screenEles.length;i<len;i++){ var screenEle=document.querySelector(screenEles[i]);//某个要动画的元素 var baseCls=screenEle.getAttribute("class");//获取原来的类 var newCls=baseCls.replace("-init", "-done"); screenEle.setAttribute("class", newCls); } } window.onscroll=function(){ var top=document.body.scrollTop || document.documentElement.scrollTop; if(top>80){ // 导航条样式改变，侧导航出现 setCls(getEle("header"), "header-black"); addCls(getEle(".outline"), "outline-in"); }else{ // 导航条样式复原，侧导航消失 delCls(getEle("header"), "header-black"); delCls(getEle(".outline"), "outline-in"); } if(top>1){ setAnimateDone(".screen-1"); headerActive(0);//导航变红 outlineActive(0);//侧导航变红 headerTip.style.left=(0*75)+"px"; } if(top>800*1-100){ setAnimateDone(".screen-2"); headerActive(1); outlineActive(1); moveAnimate(1,headerItems); headerTip.style.left=(1*75)+"px"; } if(top>800*2-100){ setAnimateDone(".screen-3"); headerActive(2); outlineActive(2); moveAnimate(2,headerItems); headerTip.style.left=(2*75)+"px"; } if(top>800*3-100){ setAnimateDone(".screen-4"); headerActive(3); outlineActive(3); moveAnimate(3,headerItems); headerTip.style.left=(3*75)+"px"; } if(top>800*4-100){ setAnimateDone(".screen-5"); headerActive(4); outlineActive(4); moveAnimate(4,headerItems); headerTip.style.left=(4*75)+"px"; } }