粒子连线背景动画

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html

css

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html

css

body {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-family: "proxima-nova-soft", sans-serif;
  -webkit-user-select: none;
  overflow: hidden;
}
body .vertical-centered-box {
  position: absolute;
  width: 100%;
  height: 100%;
  text-align: center;
}
body .vertical-centered-box:after {
  content: '';
  display: inline-block;
  height: 100%;
  vertical-align: middle;
  margin-right: -0.25em;
}
body .vertical-centered-box .content {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  display: inline-block;
  vertical-align: middle;
  text-align: left;
  font-size: 0;
}
* {
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  transition: all 0.3s;
}
body {
  background: #2c2d44;
}
.loader-circle {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
  margin-left: -60px;
  margin-top: -60px;
}
.loader-line-mask {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 60px;
  height: 120px;
  margin-left: -60px;
  margin-top: -60px;
  overflow: hidden;
  -webkit-transform-origin: 60px 60px;
  -moz-transform-origin: 60px 60px;
  -ms-transform-origin: 60px 60px;
  -o-transform-origin: 60px 60px;
  transform-origin: 60px 60px;
  -webkit-mask-image: -webkit-linear-gradient(top, #000000, rgba(0, 0, 0, 0));
  -webkit-animation: rotate 1.2s infinite linear;
  -moz-animation: rotate 1.2s infinite linear;
  -o-animation: rotate 1.2s infinite linear;
  animation: rotate 1.2s infinite linear;
}
.loader-line-mask .loader-line {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.5);
}
#particles-background,
#particles-foreground {
  left: -51%;
  top: -51%;
  width: 202%;
  height: 202%;
  -webkit-transform: scale3d(0.5, 0.5, 1);
  -moz-transform: scale3d(0.5, 0.5, 1);
  -ms-transform: scale3d(0.5, 0.5, 1);
  -o-transform: scale3d(0.5, 0.5, 1);
  transform: scale3d(0.5, 0.5, 1);
}
#particles-background {
  background: #2c2d44;
  background-image: -moz-linear-gradient(45deg, #3f3251 2%, #002025 100%);
  background-image: -webkit-linear-gradient(45deg, #3f3251 2%, #002025 100%);
  background-image: linear-gradient(45deg, #3f3251 2%, #002025 100%);
}
lesshat-selector {
  -lh-property: 0; } 
@-webkit-keyframes rotate{ 0% { -webkit-transform: rotate(0deg);} 100% { -webkit-transform: rotate(360deg);}}
@-moz-keyframes rotate{ 0% { -moz-transform: rotate(0deg);} 100% { -moz-transform: rotate(360deg);}}
@-o-keyframes rotate{ 0% { -o-transform: rotate(0deg);} 100% { -o-transform: rotate(360deg);}}
@keyframes rotate{ 0% {-webkit-transform: rotate(0deg);-moz-transform: rotate(0deg);-ms-transform: rotate(0deg);transform: rotate(0deg);} 100% {-webkit-transform: rotate(360deg);-moz-transform: rotate(360deg);-ms-transform: rotate(360deg);transform: rotate(360deg);}}
[not-existing] {
  zoom: 1;
}
lesshat-selector {
  -lh-property: 0; } 
@-webkit-keyframes fade{ 0% { opacity: 1;} 50% { opacity: 0.25;}}
@-moz-keyframes fade{ 0% { opacity: 1;} 50% { opacity: 0.25;}}
@-o-keyframes fade{ 0% { opacity: 1;} 50% { opacity: 0.25;}}
@keyframes fade{ 0% { opacity: 1;} 50% { opacity: 0.25;}}
[not-existing] {
  zoom: 1;
}
lesshat-selector {
  -lh-property: 0; } 
@-webkit-keyframes fade-in{ 0% { opacity: 0;} 100% { opacity: 1;}}
@-moz-keyframes fade-in{ 0% { opacity: 0;} 100% { opacity: 1;}}
@-o-keyframes fade-in{ 0% { opacity: 0;} 100% { opacity: 1;}}
@keyframes fade-in{ 0% { opacity: 0;} 100% { opacity: 1;}}
[not-existing] {
  zoom: 1;
}

JavaScript

/*!
 * Particleground
 *
 * @author Jonathan Nicol - @mrjnicol
 * @version 1.1.0
 * @description Creates a canvas based particle system background
 *
 * Inspired by http://requestlab.fr/ and http://disruptivebydesign.com/
 */
!function(a,b){"use strict";function c(a){a=a||{};for(var b=1;b<arguments.length;b++){var c=arguments[b];if(c)for(var d in c)c.hasOwnProperty(d)&&("object"==typeof c[d]?deepExtend(a[d],c[d]):a[d]=c[d])}return a}function d(d,g){function h(){if(y){r=b.createElement("canvas"),r.className="pg-canvas",r.style.display="block",d.insertBefore(r,d.firstChild),s=r.getContext("2d"),i();for(var c=Math.round(r.width*r.height/g.density),e=0;c>e;e++){var f=new n;f.setStackPos(e),z.push(f)}a.addEventListener("resize",function(){k()},!1),b.addEventListener("mousemove",function(a){A=a.pageX,B=a.pageY},!1),D&&!C&&a.addEventListener("deviceorientation",function(){F=Math.min(Math.max(-event.beta,-30),30),E=Math.min(Math.max(-event.gamma,-30),30)},!0),j(),q("onInit")}}function i(){r.width=d.offsetWidth,r.height=d.offsetHeight,s.fillStyle=g.dotColor,s.strokeStyle=g.lineColor,s.lineWidth=g.lineWidth}function j(){if(y){u=a.innerWidth,v=a.innerHeight,s.clearRect(0,0,r.width,r.height);for(var b=0;b<z.length;b++)z[b].updatePosition();for(var b=0;b<z.length;b++)z[b].draw();G||(t=requestAnimationFrame(j))}}function k(){i();for(var a=d.offsetWidth,b=d.offsetHeight,c=z.length-1;c>=0;c--)(z[c].position.x>a||z[c].position.y>b)&&z.splice(c,1);var e=Math.round(r.width*r.height/g.density);if(e>z.length)for(;e>z.length;){var f=new n;z.push(f)}else e<z.length&&z.splice(e);for(c=z.length-1;c>=0;c--)z[c].setStackPos(c)}function l(){G=!0}function m(){G=!1,j()}function n(){switch(this.stackPos,this.active=!0,this.layer=Math.ceil(3*Math.random()),this.parallaxOffsetX=0,this.parallaxOffsetY=0,this.position={x:Math.ceil(Math.random()*r.width),y:Math.ceil(Math.random()*r.height)},this.speed={},g.directionX){case"left":this.speed.x=+(-g.maxSpeedX+Math.random()*g.maxSpeedX-g.minSpeedX).toFixed(2);break;case"right":this.speed.x=+(Math.random()*g.maxSpeedX+g.minSpeedX).toFixed(2);break;default:this.speed.x=+(-g.maxSpeedX/2+Math.random()*g.maxSpeedX).toFixed(2),this.speed.x+=this.speed.x>0?g.minSpeedX:-g.minSpeedX}switch(g.directionY){case"up":this.speed.y=+(-g.maxSpeedY+Math.random()*g.maxSpeedY-g.minSpeedY).toFixed(2);break;case"down":this.speed.y=+(Math.random()*g.maxSpeedY+g.minSpeedY).toFixed(2);break;default:this.speed.y=+(-g.maxSpeedY/2+Math.random()*g.maxSpeedY).toFixed(2),this.speed.x+=this.speed.y>0?g.minSpeedY:-g.minSpeedY}}function o(a,b){return b?void(g[a]=b):g[a]}function p(){console.log("destroy"),r.parentNode.removeChild(r),q("onDestroy"),f&&f(d).removeData("plugin_"+e)}function q(a){void 0!==g[a]&&g[a].call(d)}var r,s,t,u,v,w,x,y=!!b.createElement("canvas").getContext,z=[],A=0,B=0,C=!navigator.userAgent.match(/(iPhone|iPod|iPad|Android|BlackBerry|BB10|mobi|tablet|opera mini|nexus 7)/i),D=!!a.DeviceOrientationEvent,E=0,F=0,G=!1;return g=c({},a[e].defaults,g),n.prototype.draw=function(){s.beginPath(),s.arc(this.position.x+this.parallaxOffsetX,this.position.y+this.parallaxOffsetY,g.particleRadius/2,0,2*Math.PI,!0),s.closePath(),s.fill(),s.beginPath();for(var a=z.length-1;a>this.stackPos;a--){var b=z[a],c=this.position.x-b.position.x,d=this.position.y-b.position.y,e=Math.sqrt(c*c+d*d).toFixed(2);e<g.proximity&&(s.moveTo(this.position.x+this.parallaxOffsetX,this.position.y+this.parallaxOffsetY),g.curvedLines?s.quadraticCurveTo(Math.max(b.position.x,b.position.x),Math.min(b.position.y,b.position.y),b.position.x+b.parallaxOffsetX,b.position.y+b.parallaxOffsetY):s.lineTo(b.position.x+b.parallaxOffsetX,b.position.y+b.parallaxOffsetY))}s.stroke(),s.closePath()},n.prototype.updatePosition=function(){if(g.parallax){if(D&&!C){var a=(u-0)/60;w=(E- -30)*a+0;var b=(v-0)/60;x=(F- -30)*b+0}else w=A,x=B;this.parallaxTargX=(w-u/2)/(g.parallaxMultiplier*this.layer),this.parallaxOffsetX+=(this.parallaxTargX-this.parallaxOffsetX)/10,this.parallaxTargY=(x-v/2)/(g.parallaxMultiplier*this.layer),this.parallaxOffsetY+=(this.parallaxTargY-this.parallaxOffsetY)/10}var c=d.offsetWidth,e=d.offsetHeight;switch(g.directionX){case"left":this.position.x+this.speed.x+this.parallaxOffsetX<0&&(this.position.x=c-this.parallaxOffsetX);break;case"right":this.position.x+this.speed.x+this.parallaxOffsetX>c&&(this.position.x=0-this.parallaxOffsetX);break;default:(this.position.x+this.speed.x+this.parallaxOffsetX>c||this.position.x+this.speed.x+this.parallaxOffsetX<0)&&(this.speed.x=-this.speed.x)}switch(g.directionY){case"up":this.position.y+this.speed.y+this.parallaxOffsetY<0&&(this.position.y=e-this.parallaxOffsetY);break;case"down":this.position.y+this.speed.y+this.parallaxOffsetY>e&&(this.position.y=0-this.parallaxOffsetY);break;default:(this.position.y+this.speed.y+this.parallaxOffsetY>e||this.position.y+this.speed.y+this.parallaxOffsetY<0)&&(this.speed.y=-this.speed.y)}this.position.x+=this.speed.x,this.position.y+=this.speed.y},n.prototype.setStackPos=function(a){this.stackPos=a},h(),{option:o,destroy:p,start:m,pause:l}}var e="particleground",f=a.jQuery;a[e]=function(a,b){return new d(a,b)},a[e].defaults={minSpeedX:.1,maxSpeedX:.7,minSpeedY:.1,maxSpeedY:.7,directionX:"center",directionY:"center",density:1e4,dotColor:"#666666",lineColor:"#666666",particleRadius:7,lineWidth:1,curvedLines:!1,proximity:100,parallax:!0,parallaxMultiplier:5,onInit:function(){},onDestroy:function(){}},f&&(f.fn[e]=function(a){if("string"==typeof arguments[0]){var b,c=arguments[0],g=Array.prototype.slice.call(arguments,1);return this.each(function(){f.data(this,"plugin_"+e)&&"function"==typeof f.data(this,"plugin_"+e)[c]&&(b=f.data(this,"plugin_"+e)[c].apply(this,g))}),void 0!==b?b:this}return"object"!=typeof a&&a?void 0:this.each(function(){f.data(this,"plugin_"+e)||f.data(this,"plugin_"+e,new d(this,a))})})}(window,document),/**
 * requestAnimationFrame polyfill by Erik M?ller. fixes from Paul Irish and Tino Zijdel
 * @see: http://paulirish.com/2011/requestanimationframe-for-smart-animating/
 * @see: http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
 * @license: MIT license
 */
function(){for(var a=0,b=["ms","moz","webkit","o"],c=0;c<b.length&&!window.requestAnimationFrame;++c)window.requestAnimationFrame=window[b[c]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[b[c]+"CancelAnimationFrame"]||window[b[c]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(b){var c=(new Date).getTime(),d=Math.max(0,16-(c-a)),e=window.setTimeout(function(){b(c+d)},d);return a=c+d,e}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(a){clearTimeout(a)})}();

particleground(document.getElementById('particles-foreground'), {
  dotColor: 'rgba(255, 255, 255, 1)',
  lineColor: 'rgba(255, 255, 255, 0.05)',
  minSpeedX: 0.3,
  maxSpeedX: 0.6,
  minSpeedY: 0.3,
  maxSpeedY: 0.6,
  density: 50000, // One particle every n pixels
  curvedLines: false,
  proximity: 250, // How close two dots need to be before they join
  parallaxMultiplier: 10, // Lower the number is more extreme parallax
  particleRadius: 4, // Dot size
});

particleground(document.getElementById('particles-background'), {
  dotColor: 'rgba(255, 255, 255, 0.5)',
  lineColor: 'rgba(255, 255, 255, 0.05)',
  minSpeedX: 0.075,
  maxSpeedX: 0.15,
  minSpeedY: 0.075,
  maxSpeedY: 0.15,
  density: 30000, // One particle every n pixels
  curvedLines: false,
  proximity: 20, // How close two dots need to be before they join
  parallaxMultiplier: 20, // Lower the number is more extreme parallax
  particleRadius: 2, // Dot size
});

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