Bootstrap Login Form with Particle Background


<div class="container">    
        
    <div id="loginbox" class="mainbox col-md-6 col-md-offset-3 col-sm-6 col-sm-offset-3"> 
        
        <div class="panel panel-default">
            <div class="panel-heading">
                <div class="panel-title text-center">Welcome</div>
            </div>     

            <div class="panel-body">

                <form name="form" id="form" class="form-horizontal" enctype="multipart/form-data" method="POST">
                   
                    <div class="input-group">
                        <span class="input-group-addon"><i class="glyphicon glyphicon-user"></i></span>
                        <input id="user" type="text" class="form-control" name="user" value="" placeholder="User">                                        
                    </div>

                    <div class="input-group">
                        <span class="input-group-addon"><i class="glyphicon glyphicon-lock"></i></span>
                        <input id="password" type="password" class="form-control" name="password" placeholder="Password">
                    </div>                                                                  

                    <div class="form-group">
                        <!-- Button -->
                        <div class="col-sm-12 controls">
                            <button type="submit" href="javascript:;" class="btn btn-primary pull-right">
                                <i class="glyphicon glyphicon-log-in"></i> Log in</button>                          
                        </div>
                    </div>

                </form>     

            </div>                     
        </div>  
    </div>
</div>

<div id="particles"></div>

    body {
    background-color: white;
}

#loginbox {
    margin-top: 30px;
}

#loginbox > div:first-child {        
    padding-bottom: 10px;    
}

.iconmelon {
    display: block;
    margin: auto;
}

#form > div {
    margin-bottom: 25px;
}

#form > div:last-child {
    margin-top: 10px;
    margin-bottom: 10px;
}

.panel {    
    background-color: transparent;
}

.panel-body {
    padding-top: 30px;
    background-color: rgba(2555,255,255,.3);
}

#particles {
    width: 100%;
    height: 100%;
    overflow: hidden;
    top: 0;                        
    bottom: 0;
    left: 0;
    right: 0;
    position: absolute;
    z-index: -2;
}

.iconmelon,
.im {
  position: relative;
  width: 150px;
  height: 150px;
  display: block;
  fill: #525151;
}

.iconmelon:after,
.im:after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
    

	/**
 * Particleground
 *
 * @author Jonathan Nicol - @mrjnicol
 * @version 1.0.1
 * @description Creates a canvas based particle system background
 *
 * Inspired by:
 * http://requestlab.fr/
 * http://disruptivebydesign.com/
 * 
 * @license The MIT License (MIT)
 * 
 * Copyright (c) 2014 Jonathan Nicol - @mrjnicol
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
!function(a){function b(b,d){function e(){if(w){$canvas=a('<canvas class="pg-canvas"></canvas>'),v.prepend($canvas),p=$canvas[0],q=p.getContext("2d"),f();for(var b=Math.round(p.width*p.height/d.density),c=0;b>c;c++){var e=new l;e.setStackPos(c),x.push(e)}a(window).on("resize",function(){h()}),a(document).on("mousemove",function(a){y=a.pageX,z=a.pageY}),B&&!A&&window.addEventListener("deviceorientation",function(){D=Math.min(Math.max(-event.beta,-30),30),C=Math.min(Math.max(-event.gamma,-30),30)},!0),g(),o("onInit")}}function f(){p.width=v.width(),p.height=v.height(),q.fillStyle=d.dotColor,q.strokeStyle=d.lineColor,q.lineWidth=d.lineWidth}function g(){if(w){s=a(window).width(),t=a(window).height(),q.clearRect(0,0,p.width,p.height);for(var b=0;b<x.length;b++)x[b].updatePosition();for(var b=0;b<x.length;b++)x[b].draw();E||(r=requestAnimationFrame(g))}}function h(){for(f(),i=x.length-1;i>=0;i--)(x[i].position.x>v.width()||x[i].position.y>v.height())&&x.splice(i,1);var a=Math.round(p.width*p.height/d.density);if(a>x.length)for(;a>x.length;){var b=new l;x.push(b)}else a<x.length&&x.splice(a);for(i=x.length-1;i>=0;i--)x[i].setStackPos(i)}function j(){E=!0}function k(){E=!1,g()}function l(){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()*p.width),y:Math.ceil(Math.random()*p.height)},this.speed={},d.directionX){case"left":this.speed.x=+(-d.maxSpeedX+Math.random()*d.maxSpeedX-d.minSpeedX).toFixed(2);break;case"right":this.speed.x=+(Math.random()*d.maxSpeedX+d.minSpeedX).toFixed(2);break;default:this.speed.x=+(-d.maxSpeedX/2+Math.random()*d.maxSpeedX).toFixed(2),this.speed.x+=this.speed.x>0?d.minSpeedX:-d.minSpeedX}switch(d.directionY){case"up":this.speed.y=+(-d.maxSpeedY+Math.random()*d.maxSpeedY-d.minSpeedY).toFixed(2);break;case"down":this.speed.y=+(Math.random()*d.maxSpeedY+d.minSpeedY).toFixed(2);break;default:this.speed.y=+(-d.maxSpeedY/2+Math.random()*d.maxSpeedY).toFixed(2),this.speed.x+=this.speed.y>0?d.minSpeedY:-d.minSpeedY}}function m(a,b){return b?void(d[a]=b):d[a]}function n(){v.find(".pg-canvas").remove(),o("onDestroy"),v.removeData("plugin_"+c)}function o(a){void 0!==d[a]&&d[a].call(u)}var p,q,r,s,t,u=b,v=a(b),w=!!document.createElement("canvas").getContext,x=[],y=0,z=0,A=!navigator.userAgent.match(/(iPhone|iPod|iPad|Android|BlackBerry|BB10|mobi|tablet|opera mini|nexus 7)/i),B=!!window.DeviceOrientationEvent,C=0,D=0,E=!1;return d=a.extend({},a.fn[c].defaults,d),l.prototype.draw=function(){q.beginPath(),q.arc(this.position.x+this.parallaxOffsetX,this.position.y+this.parallaxOffsetY,d.particleRadius/2,0,2*Math.PI,!0),q.closePath(),q.fill(),q.beginPath();for(var a=x.length-1;a>this.stackPos;a--){var b=x[a],c=this.position.x-b.position.x,e=this.position.y-b.position.y,f=Math.sqrt(c*c+e*e).toFixed(2);f<d.proximity&&(q.moveTo(this.position.x+this.parallaxOffsetX,this.position.y+this.parallaxOffsetY),d.curvedLines?q.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):q.lineTo(b.position.x+b.parallaxOffsetX,b.position.y+b.parallaxOffsetY))}q.stroke(),q.closePath()},l.prototype.updatePosition=function(){if(d.parallax){if(B&&!A){var a=(s-0)/60;pointerX=(C- -30)*a+0;var b=(t-0)/60;pointerY=(D- -30)*b+0}else pointerX=y,pointerY=z;this.parallaxTargX=(pointerX-s/2)/(d.parallaxMultiplier*this.layer),this.parallaxOffsetX+=(this.parallaxTargX-this.parallaxOffsetX)/10,this.parallaxTargY=(pointerY-t/2)/(d.parallaxMultiplier*this.layer),this.parallaxOffsetY+=(this.parallaxTargY-this.parallaxOffsetY)/10}switch(d.directionX){case"left":this.position.x+this.speed.x+this.parallaxOffsetX<0&&(this.position.x=v.width()-this.parallaxOffsetX);break;case"right":this.position.x+this.speed.x+this.parallaxOffsetX>v.width()&&(this.position.x=0-this.parallaxOffsetX);break;default:(this.position.x+this.speed.x+this.parallaxOffsetX>v.width()||this.position.x+this.speed.x+this.parallaxOffsetX<0)&&(this.speed.x=-this.speed.x)}switch(d.directionY){case"up":this.position.y+this.speed.y+this.parallaxOffsetY<0&&(this.position.y=v.height()-this.parallaxOffsetY);break;case"down":this.position.y+this.speed.y+this.parallaxOffsetY>v.height()&&(this.position.y=0-this.parallaxOffsetY);break;default:(this.position.y+this.speed.y+this.parallaxOffsetY>v.height()||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},l.prototype.setStackPos=function(a){this.stackPos=a},e(),{option:m,destroy:n,start:k,pause:j}}var c="particleground";a.fn[c]=function(d){if("string"==typeof arguments[0]){var e,f=arguments[0],g=Array.prototype.slice.call(arguments,1);return this.each(function(){a.data(this,"plugin_"+c)&&"function"==typeof a.data(this,"plugin_"+c)[f]&&(e=a.data(this,"plugin_"+c)[f].apply(this,g))}),void 0!==e?e:this}return"object"!=typeof d&&d?void 0:this.each(function(){a.data(this,"plugin_"+c)||a.data(this,"plugin_"+c,new b(this,d))})},a.fn[c].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(){}}}(jQuery),/**
 * requestAnimationFrame polyfill by Erik Möller. 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)})}();

$(function(){
            
    $('#particles').particleground({
        minSpeedX: 0.1,
        maxSpeedX: 0.7,
        minSpeedY: 0.1,
        maxSpeedY: 0.7,
        directionX: 'center', // 'center', 'left' or 'right'. 'center' = dots bounce off edges
        directionY: 'center', // 'center', 'up' or 'down'. 'center' = dots bounce off edges
        density: 10000, // How many particles will be generated: one particle every n pixels
        dotColor: '#eee',
        lineColor: '#eee',
        particleRadius: 7, // Dot size
        lineWidth: 1,
        curvedLines: true,
        proximity: 100, // How close two dots need to be before they join
        parallax: false
    });

});