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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

            
              #title="Sine Wave Experiment"
canvas#waves
            
          
!

CSS

            
              @import "compass/css3";

@import url(https://fonts.googleapis.com/css?family=Raleway:100,300);

body {
  background-color: #222;
  @include background-image(linear-gradient(top, rgba(#111,1) 0%,rgba(#222,1) 50%,rgba(#111,1) 100%));
  font-family: 'Raleway', sans-serif;
  font-weight: 100;
  color: rgba(255, 255, 255, 0.5);
  height: 100vh;
  width: 100vw;
}

#title {
  position: fixed;
  top: 10px;
  left: 10px;
  font-size: 20px;
  letter-spacing: 0.1em;
  z-index: 100;
}
            
          
!

JS

            
              /**
 * Generates multiple customizable animated sines waves
 * using a canvas element. Supports retina displays and
 * limited mobile support
 *
 * I've created a seperate library based on this pen. 
 * Check it out at https://github.com/isuttell/sine-waves
 */
function SineWaveGenerator(options) {
  $.extend(this, options || {});
  
  if(!this.el) { throw "No Canvas Selected"; }
  this.ctx = this.el.getContext('2d');
  
  if(!this.waves.length) { throw "No waves specified"; }
  
  // Internal
  this._resizeWidth();
  window.addEventListener('resize', this._resizeWidth.bind(this));
  // User
  this.resizeEvent();
  window.addEventListener('resize', this.resizeEvent.bind(this));
  
  if(typeof this.initialize === 'function') {
    this.initialize.call(this);
  }
  // Start the magic
  this.loop();
}

// Defaults
SineWaveGenerator.prototype.speed = 10;
SineWaveGenerator.prototype.amplitude = 50;
SineWaveGenerator.prototype.wavelength = 50;
SineWaveGenerator.prototype.segmentLength = 10;

SineWaveGenerator.prototype.lineWidth = 2;
SineWaveGenerator.prototype.strokeStyle  = 'rgba(255, 255, 255, 0.2)';

SineWaveGenerator.prototype.resizeEvent = function() {};

// fill the screen
SineWaveGenerator.prototype._resizeWidth = function() {
  this.dpr = window.devicePixelRatio || 1;
  
  this.width = this.el.width = window.innerWidth * this.dpr;
  this.height = this.el.height = window.innerHeight * this.dpr;
  this.el.style.width = window.innerWidth + 'px';
  this.el.style.height = window.innerHeight + 'px';
  
  this.waveWidth = this.width * 0.95;
  this.waveLeft = this.width * 0.025;
}

SineWaveGenerator.prototype.clear = function () {
  this.ctx.clearRect(0, 0, this.width, this.height);
}

SineWaveGenerator.prototype.time = 0;

SineWaveGenerator.prototype.update = function(time) {  
  this.time = this.time - 0.007;
  if(typeof time === 'undefined') {
    time = this.time;
  }

  var index = -1;
  var length = this.waves.length;

  while(++index < length) {
    var timeModifier = this.waves[index].timeModifier || 1;
    this.drawSine(time * timeModifier, this.waves[index]);
  }
  index = void 0;
  length = void 0;
}

// Constants
var PI2 = Math.PI * 2;
var HALFPI = Math.PI / 2;

SineWaveGenerator.prototype.ease = function(percent, amplitude) {
  return amplitude * (Math.sin(percent * PI2 - HALFPI) + 1) * 0.5;
}

SineWaveGenerator.prototype.drawSine = function(time, options) {
  options = options || {};
  amplitude = options.amplitude || this.amplitude;
  wavelength = options.wavelength || this.wavelength;
  lineWidth = options.lineWidth || this.lineWidth;
  strokeStyle = options.strokeStyle || this.strokeStyle;
  segmentLength = options.segmentLength || this.segmentLength;
  
  var x = time;
  var y = 0;  
  var amp = this.amplitude;
 
  // Center the waves
  var yAxis = this.height / 2; 
  
  // Styles
  this.ctx.lineWidth = lineWidth * this.dpr;
  this.ctx.strokeStyle = strokeStyle;
  this.ctx.lineCap = 'round';
  this.ctx.lineJoin = 'round';
  this.ctx.beginPath();
  
  // Starting Line
  this.ctx.moveTo(0, yAxis);
  this.ctx.lineTo(this.waveLeft, yAxis);
  
  for(var i = 0; i < this.waveWidth; i += segmentLength) {
    x = (time * this.speed) + (-yAxis + i) / wavelength; 
    y = Math.sin(x); 
    
    // Easing
    amp = this.ease(i / this.waveWidth, amplitude); 
    
    this.ctx.lineTo(i + this.waveLeft, amp * y + yAxis);
    
    amp = void 0;
  }
  
  // Ending Line
  this.ctx.lineTo(this.width, yAxis);
  
  // Stroke it
  this.ctx.stroke();
  
  // Clean up
  options = void 0;
  amplitude = void 0;
  wavelength = void 0;
  lineWidth = void 0;
  strokeStyle = void 0;
  segmentLength = void 0;
  x = void 0;
  y = void 0;
} 

SineWaveGenerator.prototype.loop = function() {
  this.clear();
  this.update();
  
  window.requestAnimationFrame(this.loop.bind(this));
}

new SineWaveGenerator({
  el: document.getElementById('waves'),
  
  speed: 8,
  
  waves: [
    {
      timeModifier: 1,
      lineWidth: 3,
      amplitude: 150,
      wavelength: 200,
      segmentLength: 20,
//       strokeStyle: 'rgba(255, 255, 255, 0.5)'
    },
    {
      timeModifier: 1,
      lineWidth: 2,
      amplitude: 150,
      wavelength: 100,
//       strokeStyle: 'rgba(255, 255, 255, 0.3)'
    },
    {
      timeModifier: 1,
      lineWidth: 1,
      amplitude: -150,
      wavelength: 50,
      segmentLength: 10,
//       strokeStyle: 'rgba(255, 255, 255, 0.2)'
    },
    {
      timeModifier: 1,
      lineWidth: 0.5,
      amplitude: -100,
      wavelength: 100,
      segmentLength: 10,
//       strokeStyle: 'rgba(255, 255, 255, 0.1)'
    }
  ],
  
  initialize: function (){

  },
  
  resizeEvent: function() {
    var gradient = this.ctx.createLinearGradient(0, 0, this.width, 0);
    gradient.addColorStop(0,"rgba(0, 0, 0, 0)");
    gradient.addColorStop(0.5,"rgba(255, 255, 255, 0.5)");
    gradient.addColorStop(1,"rgba(0, 0, 0, 0)");
    
    var index = -1;
    var length = this.waves.length;
	  while(++index < length){
      this.waves[index].strokeStyle = gradient;
    }
    
    // Clean Up
    index = void 0;
    length = void 0;
    gradient = void 0;
  }
});
            
          
!
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