目录
前言
HTML部分
CSS部分
JS部分
效果图
总结
前言
无需多言，本文将详细介绍一段HTML代码，图中线条可跟随鼠标移动，具体内容如下：
开始
首先新建一个HTML的文本，文本名改为[index.html]，创建好后右键用文本文档打开，再把下面相对应代码填入后保存即可。（文本名主要是改后缀）
HTML部分
下面代码是一个完整的HTML页面，包含了HTML、CSS和JavaScript。首先先对代码各个方面进行分析：
HTML部分
<!DOCTYPE html>声明了文档类型和HTML版本，这里是XHTML 1.0 Transitional，它允许使用一些不严格的标签。<html>标签定义了整个页面的内容，xmlns属性指定了命名空间，通常用于XML文档。<head>部分包含了文档的元数据，如<meta>标签定义了字符集为UTF-8，<title>定义了页面标题。<body>标签内包含了页面的所有内容，如文本、图片、视频等。
CSS部分
- 使用了内联
<style>标签定义了页面的样式。 - 有一个重置样式
* { margin: 0; padding: 0; ... }，这用于统一不同浏览器的默认样式。 - 定义了一些动画和过渡效果，如
h1, h2的字母逐渐显示效果。 - 页面背景、文字样式、链接样式等都通过CSS进行了定义。
JavaScript部分
- 定义了一个
Stats函数，用于显示页面的帧率(FPS)和毫秒数(MS)。 - 定义了
Oscillator和Tendril类，这些类用于生成页面上的动态效果。 - 使用了
requestAnimFrame来创建平滑的动画循环。 - 通过
mousemove、touchstart等事件监听器来响应用户的交互。 - 有一个
letters函数，用于将标题中的每个字母分开，并添加动画效果。 - 有一个
save函数，可能用于保存页面的当前状态为图片。
其他注意事项
<canvas>元素被用于绘制动态图形。- 页面中有一些用于调试的代码，如
settings.debug = true;，这可能在开发过程中有用，但在生产环境中应该被移除或设置为false。<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>丝滑</title> <style type="text/css"> * { margin: 0; padding: 0; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; -ms-box-sizing: border-box; -o-box-sizing: border-box; box-sizing: border-box; } html, body { margin: 0; padding: 0; font: 16px/1.4 'Lato', sans-serif; color: #fefeff; -webkit-font-smoothing: antialiased; font-smoothing: antialiased; } body { background: rgb(8,5,16); overflow:hidden; -webkit-touch-callout: none; -webkit-user-select: none; -khtml-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; } h1 { font: 2.75em 'Cinzel', serif; font-weight: 400; letter-spacing: 0.35em; text-shadow: 0 0 25px rgba(254,254,255,0.85); } h2 { font: 1.45em 'Cinzel', serif; font-weight: 400; letter-spacing: 0.5em; text-shadow: 0 0 25px rgba(254,254,255,0.85); text-transform: lowercase; } [class^="letter"] { -webkit-transition: opacity 3s ease; -moz-transition: opacity 3s ease; transition: opacity 3s ease; } .letter-0 { transition-delay: 0.2s; } .letter-1 { transition-delay: 0.4s; } .letter-2 { transition-delay: 0.6s; } .letter-3 { transition-delay: 0.8s; } .letter-4 { transition-delay: 1.0s; } .letter-5 { transition-delay: 1.2s; } .letter-6 { transition-delay: 1.4s; } .letter-7 { transition-delay: 1.6s; } .letter-8 { transition-delay: 1.8s; } .letter-9 { transition-delay: 2.0s; } .letter-10 { transition-delay: 2.2s; } .letter-11 { transition-delay: 2.4s; } .letter-12 { transition-delay: 2.6s; } .letter-13 { transition-delay: 2.8s; } .letter-14 { transition-delay: 3.0s; } h1, h2 { visibility: hidden; -webkit-transform: translate3d(0, 0, 0); -moz-transform: translate3d(0, 0, 0); transform: translate3d(0, 0, 0); } h1.transition-in, h2.transition-in { visibility: visible; } h1 [class^="letter"], h2 [class^="letter"] { opacity: 0; } h1.transition-in [class^="letter"], h2.transition-in [class^="letter"] { opacity: 1; } #container { display: table; position: absolute; z-index: 20; width: 100%; height: 100%; text-align: center; cursor: none; left: 15px; } #container > div { display: table-cell; vertical-align: middle; } #container p { position: absolute; width: 100%; left: 0; bottom: 25px; font-size: 0.8em; letter-spacing: 0.1em; font-weight: 300; color: #76747a; -webkit-font-smoothing: subpixel-antialiased; font-smoothing: subpixel-antialiased; } #container p strong { color: #b3abc5; font-size: 5em; } #container p span { font-size: 0.75em; padding: 0 2px; } #canvas { position: absolute; z-index: 10; top: 0; left: 0; width: 100%; height: 100%; cursor: none; } #stats { position: absolute; z-index: 10; left: 10px; top: 10px; } .dg.ac { z-index: 100 !important; } #container div p strong a { color: #999; font-size: 0.5em; } body,td,th { font-family: Lato, sans-serif; } a:link { text-decoration: none; } a:visited { text-decoration: none; } a:hover { text-decoration: none; } a:active { text-decoration: none; } </style> </head> <body ondragstart="window.event.returnValue=false" oncontextmenu="window.event.returnValue=false" onselectstart="event.returnValue=false"> <div id="container"> <div> <h1 id="h1">HTML讨论群，计算机考证讨论群，请加QQ群</h1> <h2 id="h2">757183195，428886795</h2> <h3 id="h2">雷神 Leo</h3> <p> </p> <p><strong><a href="https://gxguizhiyuan.com/volunteer-pc/#/home/team/info/824313033?isAdd=1">简介</a></strong></p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> </div> </div> <canvas id="canvas"></canvas> <audio autoplay="autoplay"> <source src="http://www.ntzyw.cn" type="audio/ogg"> <source src="http://p2014.yaotou.com:8081/2014%2F2014-4%2F2014-4-20%2F2014420203237.m4a" type="audio/mpeg"> </audio> <script> var Stats=function(){var e=Date.now(),t=e,i=0,n=1/0,r=0,s=0,o=1/0,a=0,l=0,h=0,c=document.createElement("div");c.id="stats",c.addEventListener("mousedown",function(e){e.preventDefault(),v(++h%2)},!1),c.style.cssText="width:80px;opacity:0.9;cursor:pointer";var u=document.createElement("div");u.id="fps",u.style.cssText="padding:0 0 3px 3px;text-align:left;background-color:#002",c.appendChild(u);var d=document.createElement("div");d.id="fpsText",d.style.cssText="color:#0ff;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px",d.innerHTML="FPS",u.appendChild(d);var p=document.createElement("div");for(p.id="fpsGraph",p.style.cssText="position:relative;width:74px;height:30px;background-color:#0ff",u.appendChild(p);74>p.children.length;){var f=document.createElement("span");f.style.cssText="width:1px;height:30px;float:left;background-color:#113",p.appendChild(f)}var m=document.createElement("div");m.id="ms",m.style.cssText="padding:0 0 3px 3px;text-align:left;background-color:#020;display:none",c.appendChild(m);var g=document.createElement("div");g.id="msText",g.style.cssText="color:#0f0;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px",g.innerHTML="MS",m.appendChild(g);var y=document.createElement("div");for(y.id="msGraph",y.style.cssText="position:relative;width:74px;height:30px;background-color:#0f0",m.appendChild(y);74>y.children.length;){var f=document.createElement("span");f.style.cssText="width:1px;height:30px;float:left;background-color:#131",y.appendChild(f)}var v=function(e){switch(h=e){case 0:u.style.display="block",m.style.display="none";break;case 1:u.style.display="none",m.style.display="block"}},b=function(e,t){var i=e.appendChild(e.firstChild);i.style.height=t+"px"};return{REVISION:11,domElement:c,setMode:v,begin:function(){e=Date.now()},end:function(){var h=Date.now();return i=h-e,n=Math.min(n,i),r=Math.max(r,i),g.textContent=i+" MS ("+n+"-"+r+")",b(y,Math.min(30,30-30*(i/200))),l++,h>t+1e3&&(s=Math.round(1e3*l/(h-t)),o=Math.min(o,s),a=Math.max(a,s),d.textContent=s+" FPS ("+o+"-"+a+")",b(p,Math.min(30,30-30*(s/100))),t=h,l=0),h},update:function(){e=this.end()}}}; </script> <script> ;(function(window) { var ctx, hue, logo, form, buffer, target = {}, tendrils = [], settings = {}; settings.debug = true; settings.friction = 0.5; settings.trails = 20; settings.size = 50; settings.dampening = 0.25; settings.tension = 0.98; Math.TWO_PI = Math.PI * 2; // ======================================================================================== // Oscillator // ---------------------------------------------------------------------------------------- function Oscillator(options) { this.init(options || {}); } Oscillator.prototype = (function() { var value = 0; return { init: function(options) { this.phase = options.phase || 0; this.offset = options.offset || 0; this.frequency = options.frequency || 0.001; this.amplitude = options.amplitude || 1; }, update: function() { this.phase += this.frequency; value = this.offset + Math.sin(this.phase) * this.amplitude; return value; }, value: function() { return value; } }; })(); // ======================================================================================== // Tendril // ---------------------------------------------------------------------------------------- function Tendril(options) { this.init(options || {}); } Tendril.prototype = (function() { function Node() { this.x = 0; this.y = 0; this.vy = 0; this.vx = 0; } return { init: function(options) { this.spring = options.spring + (Math.random() * 0.1) - 0.05; this.friction = settings.friction + (Math.random() * 0.01) - 0.005; this.nodes = []; for(var i = 0, node; i < settings.size; i++) { node = new Node(); node.x = target.x; node.y = target.y; this.nodes.push(node); } }, update: function() { var spring = this.spring, node = this.nodes[0]; node.vx += (target.x - node.x) * spring; node.vy += (target.y - node.y) * spring; for(var prev, i = 0, n = this.nodes.length; i < n; i++) { node = this.nodes[i]; if(i > 0) { prev = this.nodes[i - 1]; node.vx += (prev.x - node.x) * spring; node.vy += (prev.y - node.y) * spring; node.vx += prev.vx * settings.dampening; node.vy += prev.vy * settings.dampening; } node.vx *= this.friction; node.vy *= this.friction; node.x += node.vx; node.y += node.vy; spring *= settings.tension; } }, draw: function() { var x = this.nodes[0].x, y = this.nodes[0].y, a, b; ctx.beginPath(); ctx.moveTo(x, y); for(var i = 1, n = this.nodes.length - 2; i < n; i++) { a = this.nodes[i]; b = this.nodes[i + 1]; x = (a.x + b.x) * 0.5; y = (a.y + b.y) * 0.5; ctx.quadraticCurveTo(a.x, a.y, x, y); } a = this.nodes[i]; b = this.nodes[i + 1]; ctx.quadraticCurveTo(a.x, a.y, b.x, b.y); ctx.stroke(); ctx.closePath(); } }; })(); // ---------------------------------------------------------------------------------------- function init(event) { document.removeEventListener('mousemove', init); document.removeEventListener('touchstart', init); document.addEventListener('mousemove', mousemove); document.addEventListener('touchmove', mousemove); document.addEventListener('touchstart', touchstart); mousemove(event); reset(); loop(); } function reset() { tendrils = []; for(var i = 0; i < settings.trails; i++) { tendrils.push(new Tendril({ spring: 0.45 + 0.025 * (i / settings.trails) })); } } function loop() { if(!ctx.running) return; ctx.globalCompositeOperation = 'source-over'; ctx.fillStyle = 'rgba(8,5,16,0.4)'; ctx.fillRect(0, 0, ctx.canvas.width, ctx.canvas.height); ctx.globalCompositeOperation = 'lighter'; ctx.strokeStyle = 'hsla(' + Math.round(hue.update()) + ',90%,50%,0.25)'; ctx.lineWidth = 1; if(ctx.frame % 60 == 0) { console.log(hue.update(), Math.round(hue.update()), hue.phase, hue.offset, hue.frequency, hue.amplitude); } for(var i = 0, tendril; i < settings.trails; i++) { tendril = tendrils[i]; tendril.update(); tendril.draw(); } ctx.frame++; ctx.stats.update(); requestAnimFrame(loop); } function resize() { ctx.canvas.width = window.innerWidth; ctx.canvas.height = window.innerHeight; } function start() { if(!ctx.running) { ctx.running = true; loop(); } } function stop() { ctx.running = false; } function mousemove(event) { if(event.touches) { target.x = event.touches[0].pageX; target.y = event.touches[0].pageY; } else { target.x = event.clientX target.y = event.clientY; } event.preventDefault(); } function touchstart(event) { if(event.touches.length == 1) { target.x = event.touches[0].pageX; target.y = event.touches[0].pageY; } } function keyup(event) { switch(event.keyCode) { case 32: save(); break; default: // console.log(event.keyCode); } } function letters(id) { var el = document.getElementById(id), letters = el.innerHTML.replace('&', '&').split(''), heading = ''; for(var i = 0, n = letters.length, letter; i < n; i++) { letter = letters[i].replace('&', '&'); heading += letter.trim() ? '<span class="letter-' + i + '">' + letter + '</span>' : ' '; } el.innerHTML = heading; setTimeout(function() { el.className = 'transition-in'; }, (Math.random() * 500) + 500); } function save() { if(!buffer) { buffer = document.createElement('canvas'); buffer.width = screen.availWidth; buffer.height = screen.availHeight; buffer.ctx = buffer.getContext('2d'); form = document.createElement('form'); form.method = 'post'; form.input = document.createElement('input'); form.input.type = 'hidden'; form.input.name = 'data'; form.appendChild(form.input); document.body.appendChild(form); } buffer.ctx.fillStyle = 'rgba(8,5,16)'; buffer.ctx.fillRect(0, 0, buffer.width, buffer.height); buffer.ctx.drawImage(canvas, Math.round(buffer.width / 2 - canvas.width / 2), Math.round(buffer.height / 2 - canvas.height / 2) ); buffer.ctx.drawImage(logo, Math.round(buffer.width / 2 - logo.width / 4), Math.round(buffer.height / 2 - logo.height / 4), logo.width / 2, logo.height / 2 ); window.open(buffer.toDataURL(), 'wallpaper', 'top=0,left=0,width=' + buffer.width + ',height=' + buffer.height); // form.input.value = buffer.toDataURL().substr(22); // form.submit(); } window.requestAnimFrame = (function() { return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || function(fn) { window.setTimeout(fn, 1000 / 60) }; })(); window.onload = function() { ctx = document.getElementById('canvas').getContext('2d'); ctx.stats = new Stats(); ctx.running = true; ctx.frame = 1; logo = new Image(); logo.src = 'http://labs.nikrowell.com/lightsandmotion/ultraviolet/images/logo.png'; hue = new Oscillator({ phase: Math.random() * Math.TWO_PI, amplitude: 85, frequency: 0.0015, offset: 285 }); letters('h1'); letters('h2'); document.addEventListener('mousemove', init); document.addEventListener('touchstart', init); document.body.addEventListener('orientationchange', resize); window.addEventListener('resize', resize); window.addEventListener('keyup', keyup); window.addEventListener('focus', start); window.addEventListener('blur', stop); resize(); if(window.DEBUG) { var gui = new dat.GUI(); // gui.add(settings, 'debug'); settings.gui.add(settings, 'trails', 1, 30).onChange(reset); settings.gui.add(settings, 'size', 25, 75).onFinishChange(reset); settings.gui.add(settings, 'friction', 0.45, 0.55).onFinishChange(reset); settings.gui.add(settings, 'dampening', 0.01, 0.4).onFinishChange(reset); settings.gui.add(settings, 'tension', 0.95, 0.999).onFinishChange(reset); document.body.appendChild(ctx.stats.domElement); } }; })(window); </script> </body> </html>
效果图
具体可以上手体验，十分简单，只要会复制粘贴改后缀就行。
总结
这段代码是一个交互式网页的示例，它利用HTML定义了页面结构，CSS负责页面的样式设计，包括动画和过渡效果，以及一个重置样式来统一不同浏览器的默认样式。JavaScript部分实现了动态效果，包括一个自定义的`Stats`函数来显示性能指标，以及`Oscillator`和`Tendril`类来创建视觉效果。此外，通过监听用户的鼠标和触摸动作，页面能够响应交互。代码中还包含了一些可能用于调试目的的设置，以及一些可能存在问题或需要优化的资源链接。整体而言，该页面通过结合前端技术，提供了视觉动画和用户交互的体验。
