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HTML

              
                .container
  button
    .notification A new user joined!
  .members
    ul
      li
        |Share your video?
        input type="checkbox"
      li
        |Share your audio?
        input type="checkbox"
      li Neeraj
      li
        span rileyjshaw
      li Rick Sanchez
              
            
!

CSS

              
                $white: #f4f4f4;
$red: #ff5c5d;
$green: #53d76a;
$blue: #29404b;
$grey: #d3d3d3;
$colors: #c000e0, #ff5c5d, #53d76a, #00c0e0;

body {
  margin: 0;
  border-top: 2px solid #ff5c5d;
  font-size: 16px;
  font-family: 'Oxygen', sans-serif;
  background: $blue;
}

.container, button, .notification, .members {
  position: absolute;
}
    
button, .notification {
  border-radius: 30px;
}
    
.container {
  bottom: 18px;
  left: 18px;
  height: 60px;
  width: 60px;
}

button {
  position: relative;
  height: 100%;
  width: 100%;
  border: 0;
  outline: 0;
  font-size: 12px;
  background: nth($colors, 4);
  cursor: pointer;
  
  &::after {
    content: '3';
    position: absolute;
    bottom: -4px;
    right: -4px;
    height: 24px;
    line-height: 24px;
    width: 24px;
    text-align: center;
    color: $white;
    background: $red;
    border-radius: 12px;
  }
}

.members, .notification.active {
  width: 240px;
  color: #59606b;
}

.notification, li {
  background: $white;
  box-sizing: border-box;
  box-shadow: inset 0 0 96px white;
}

.notification {
  line-height: 56px;
  z-index: -1;
  top: 0;
  left: 0;
  height: 100%;
  width: 60px;
  padding-left: 30px;
  border: 1px solid nth($colors, 4);
  text-align: center;
  color: #f4f4f4;
  overflow: hidden;
  transition: width 0.5s, color 0.4s;
  user-select: none;
  p {
    margin: 0;
    vertical-align: middle;
  }
}

.members {
  display: none;
  bottom: 84px;
  
  .open + & {
    display: block;
  }
      
  &::after {
    content: '';
    position: absolute;
    bottom: -18px;
    left: 18px;
    width: 0;
    height: 0;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-top: 18px solid #fafafa;
  }
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
  border-radius: 18px;
  overflow: hidden;
}

li {
  height: 60px;
  line-height: 60px;
  padding-left: 1em;
  border-top: 1px solid #fff;
  border-bottom: 1px solid #ededed;
  color: #59606b;

  &:first-child {
    border-top: 0;
  }

  &:last-child {
    border-bottom: 0;
  }
  
  &:nth-child(n+3)::before {
    content: '';
    position: relative;
    top: 2px;
    height: 18px;
    width: 18px;
    margin-right: 1em;
    border-radius: 12px;
    display: inline-block;
  }
  
  @for $i from 3 through 5 {
    &:nth-child(#{$i})::before {
      background: nth($colors, $i - 1);
    }
  }
}

// switchery.min.css
// https://abpetkov.github.io/switchery/
.switchery{float:right;margin:16px;background-color:#fff;border:1px solid #dfdfdf;border-radius:20px;cursor:pointer;display:inline-block;height:24px;position:relative;vertical-align:middle;width:42px;-moz-user-select:none;-khtml-user-select:none;-webkit-user-select:none;-ms-user-select:none;user-select:none;-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box}.switchery>small{background:#fff;border-radius:100%;box-shadow:0 1px 3px rgba(0,0,0,0.4);height:24px;position:absolute;top:0;width:24px}

              
            
!

JS

              
                // switchery.min.js
// https://abpetkov.github.io/switchery/
(function(){function require(path,parent,orig){var resolved=require.resolve(path);if(null==resolved){orig=orig||path;parent=parent||"root";var err=new Error('Failed to require "'+orig+'" from "'+parent+'"');err.path=orig;err.parent=parent;err.require=true;throw err}var module=require.modules[resolved];if(!module._resolving&&!module.exports){var mod={};mod.exports={};mod.client=mod.component=true;module._resolving=true;module.call(this,mod.exports,require.relative(resolved),mod);delete module._resolving;module.exports=mod.exports}return module.exports}require.modules={};require.aliases={};require.resolve=function(path){if(path.charAt(0)==="/")path=path.slice(1);var paths=[path,path+".js",path+".json",path+"/index.js",path+"/index.json"];for(var i=0;i<paths.length;i++){var path=paths[i];if(require.modules.hasOwnProperty(path))return path;if(require.aliases.hasOwnProperty(path))return require.aliases[path]}};require.normalize=function(curr,path){var segs=[];if("."!=path.charAt(0))return path;curr=curr.split("/");path=path.split("/");for(var i=0;i<path.length;++i){if(".."==path[i]){curr.pop()}else if("."!=path[i]&&""!=path[i]){segs.push(path[i])}}return curr.concat(segs).join("/")};require.register=function(path,definition){require.modules[path]=definition};require.alias=function(from,to){if(!require.modules.hasOwnProperty(from)){throw new Error('Failed to alias "'+from+'", it does not exist')}require.aliases[to]=from};require.relative=function(parent){var p=require.normalize(parent,"..");function lastIndexOf(arr,obj){var i=arr.length;while(i--){if(arr[i]===obj)return i}return-1}function localRequire(path){var resolved=localRequire.resolve(path);return require(resolved,parent,path)}localRequire.resolve=function(path){var c=path.charAt(0);if("/"==c)return path.slice(1);if("."==c)return require.normalize(p,path);var segs=parent.split("/");var i=lastIndexOf(segs,"deps")+1;if(!i)i=0;path=segs.slice(0,i+1).join("/")+"/deps/"+path;return path};localRequire.exists=function(path){return require.modules.hasOwnProperty(localRequire.resolve(path))};return localRequire};require.register("abpetkov-transitionize/transitionize.js",function(exports,require,module){module.exports=Transitionize;function Transitionize(element,props){if(!(this instanceof Transitionize))return new Transitionize(element,props);this.element=element;this.props=props||{};this.init()}Transitionize.prototype.isSafari=function(){return/Safari/.test(navigator.userAgent)&&/Apple Computer/.test(navigator.vendor)};Transitionize.prototype.init=function(){var transitions=[];for(var key in this.props){transitions.push(key+" "+this.props[key])}this.element.style.transition=transitions.join(", ");if(this.isSafari())this.element.style.webkitTransition=transitions.join(", ")}});require.register("ftlabs-fastclick/lib/fastclick.js",function(exports,require,module){function FastClick(layer){"use strict";var oldOnClick,self=this;this.trackingClick=false;this.trackingClickStart=0;this.targetElement=null;this.touchStartX=0;this.touchStartY=0;this.lastTouchIdentifier=0;this.touchBoundary=10;this.layer=layer;if(!layer||!layer.nodeType){throw new TypeError("Layer must be a document node")}this.onClick=function(){return FastClick.prototype.onClick.apply(self,arguments)};this.onMouse=function(){return FastClick.prototype.onMouse.apply(self,arguments)};this.onTouchStart=function(){return FastClick.prototype.onTouchStart.apply(self,arguments)};this.onTouchMove=function(){return FastClick.prototype.onTouchMove.apply(self,arguments)};this.onTouchEnd=function(){return FastClick.prototype.onTouchEnd.apply(self,arguments)};this.onTouchCancel=function(){return FastClick.prototype.onTouchCancel.apply(self,arguments)};if(FastClick.notNeeded(layer)){return}if(this.deviceIsAndroid){layer.addEventListener("mouseover",this.onMouse,true);layer.addEventListener("mousedown",this.onMouse,true);layer.addEventListener("mouseup",this.onMouse,true)}layer.addEventListener("click",this.onClick,true);layer.addEventListener("touchstart",this.onTouchStart,false);layer.addEventListener("touchmove",this.onTouchMove,false);layer.addEventListener("touchend",this.onTouchEnd,false);layer.addEventListener("touchcancel",this.onTouchCancel,false);if(!Event.prototype.stopImmediatePropagation){layer.removeEventListener=function(type,callback,capture){var rmv=Node.prototype.removeEventListener;if(type==="click"){rmv.call(layer,type,callback.hijacked||callback,capture)}else{rmv.call(layer,type,callback,capture)}};layer.addEventListener=function(type,callback,capture){var adv=Node.prototype.addEventListener;if(type==="click"){adv.call(layer,type,callback.hijacked||(callback.hijacked=function(event){if(!event.propagationStopped){callback(event)}}),capture)}else{adv.call(layer,type,callback,capture)}}}if(typeof layer.onclick==="function"){oldOnClick=layer.onclick;layer.addEventListener("click",function(event){oldOnClick(event)},false);layer.onclick=null}}FastClick.prototype.deviceIsAndroid=navigator.userAgent.indexOf("Android")>0;FastClick.prototype.deviceIsIOS=/iP(ad|hone|od)/.test(navigator.userAgent);FastClick.prototype.deviceIsIOS4=FastClick.prototype.deviceIsIOS&&/OS 4_\d(_\d)?/.test(navigator.userAgent);FastClick.prototype.deviceIsIOSWithBadTarget=FastClick.prototype.deviceIsIOS&&/OS ([6-9]|\d{2})_\d/.test(navigator.userAgent);FastClick.prototype.needsClick=function(target){"use strict";switch(target.nodeName.toLowerCase()){case"button":case"select":case"textarea":if(target.disabled){return true}break;case"input":if(this.deviceIsIOS&&target.type==="file"||target.disabled){return true}break;case"label":case"video":return true}return/\bneedsclick\b/.test(target.className)};FastClick.prototype.needsFocus=function(target){"use strict";switch(target.nodeName.toLowerCase()){case"textarea":return true;case"select":return!this.deviceIsAndroid;case"input":switch(target.type){case"button":case"checkbox":case"file":case"image":case"radio":case"submit":return false}return!target.disabled&&!target.readOnly;default:return/\bneedsfocus\b/.test(target.className)}};FastClick.prototype.sendClick=function(targetElement,event){"use strict";var clickEvent,touch;if(document.activeElement&&document.activeElement!==targetElement){document.activeElement.blur()}touch=event.changedTouches[0];clickEvent=document.createEvent("MouseEvents");clickEvent.initMouseEvent(this.determineEventType(targetElement),true,true,window,1,touch.screenX,touch.screenY,touch.clientX,touch.clientY,false,false,false,false,0,null);clickEvent.forwardedTouchEvent=true;targetElement.dispatchEvent(clickEvent)};FastClick.prototype.determineEventType=function(targetElement){"use strict";if(this.deviceIsAndroid&&targetElement.tagName.toLowerCase()==="select"){return"mousedown"}return"click"};FastClick.prototype.focus=function(targetElement){"use strict";var length;if(this.deviceIsIOS&&targetElement.setSelectionRange&&targetElement.type.indexOf("date")!==0&&targetElement.type!=="time"){length=targetElement.value.length;targetElement.setSelectionRange(length,length)}else{targetElement.focus()}};FastClick.prototype.updateScrollParent=function(targetElement){"use strict";var scrollParent,parentElement;scrollParent=targetElement.fastClickScrollParent;if(!scrollParent||!scrollParent.contains(targetElement)){parentElement=targetElement;do{if(parentElement.scrollHeight>parentElement.offsetHeight){scrollParent=parentElement;targetElement.fastClickScrollParent=parentElement;break}parentElement=parentElement.parentElement}while(parentElement)}if(scrollParent){scrollParent.fastClickLastScrollTop=scrollParent.scrollTop}};FastClick.prototype.getTargetElementFromEventTarget=function(eventTarget){"use strict";if(eventTarget.nodeType===Node.TEXT_NODE){return eventTarget.parentNode}return eventTarget};FastClick.prototype.onTouchStart=function(event){"use strict";var targetElement,touch,selection;if(event.targetTouches.length>1){return true}targetElement=this.getTargetElementFromEventTarget(event.target);touch=event.targetTouches[0];if(this.deviceIsIOS){selection=window.getSelection();if(selection.rangeCount&&!selection.isCollapsed){return true}if(!this.deviceIsIOS4){if(touch.identifier===this.lastTouchIdentifier){event.preventDefault();return false}this.lastTouchIdentifier=touch.identifier;this.updateScrollParent(targetElement)}}this.trackingClick=true;this.trackingClickStart=event.timeStamp;this.targetElement=targetElement;this.touchStartX=touch.pageX;this.touchStartY=touch.pageY;if(event.timeStamp-this.lastClickTime<200){event.preventDefault()}return true};FastClick.prototype.touchHasMoved=function(event){"use strict";var touch=event.changedTouches[0],boundary=this.touchBoundary;if(Math.abs(touch.pageX-this.touchStartX)>boundary||Math.abs(touch.pageY-this.touchStartY)>boundary){return true}return false};FastClick.prototype.onTouchMove=function(event){"use strict";if(!this.trackingClick){return true}if(this.targetElement!==this.getTargetElementFromEventTarget(event.target)||this.touchHasMoved(event)){this.trackingClick=false;this.targetElement=null}return true};FastClick.prototype.findControl=function(labelElement){"use strict";if(labelElement.control!==undefined){return labelElement.control}if(labelElement.htmlFor){return document.getElementById(labelElement.htmlFor)}return labelElement.querySelector("button, input:not([type=hidden]), keygen, meter, output, progress, select, textarea")};FastClick.prototype.onTouchEnd=function(event){"use strict";var forElement,trackingClickStart,targetTagName,scrollParent,touch,targetElement=this.targetElement;if(!this.trackingClick){return true}if(event.timeStamp-this.lastClickTime<200){this.cancelNextClick=true;return true}this.cancelNextClick=false;this.lastClickTime=event.timeStamp;trackingClickStart=this.trackingClickStart;this.trackingClick=false;this.trackingClickStart=0;if(this.deviceIsIOSWithBadTarget){touch=event.changedTouches[0];targetElement=document.elementFromPoint(touch.pageX-window.pageXOffset,touch.pageY-window.pageYOffset)||targetElement;targetElement.fastClickScrollParent=this.targetElement.fastClickScrollParent}targetTagName=targetElement.tagName.toLowerCase();if(targetTagName==="label"){forElement=this.findControl(targetElement);if(forElement){this.focus(targetElement);if(this.deviceIsAndroid){return false}targetElement=forElement}}else if(this.needsFocus(targetElement)){if(event.timeStamp-trackingClickStart>100||this.deviceIsIOS&&window.top!==window&&targetTagName==="input"){this.targetElement=null;return false}this.focus(targetElement);if(!this.deviceIsIOS4||targetTagName!=="select"){this.targetElement=null;event.preventDefault()}return false}if(this.deviceIsIOS&&!this.deviceIsIOS4){scrollParent=targetElement.fastClickScrollParent;if(scrollParent&&scrollParent.fastClickLastScrollTop!==scrollParent.scrollTop){return true}}if(!this.needsClick(targetElement)){event.preventDefault();this.sendClick(targetElement,event)}return false};FastClick.prototype.onTouchCancel=function(){"use strict";this.trackingClick=false;this.targetElement=null};FastClick.prototype.onMouse=function(event){"use strict";if(!this.targetElement){return true}if(event.forwardedTouchEvent){return true}if(!event.cancelable){return true}if(!this.needsClick(this.targetElement)||this.cancelNextClick){if(event.stopImmediatePropagation){event.stopImmediatePropagation()}else{event.propagationStopped=true}event.stopPropagation();event.preventDefault();return false}return true};FastClick.prototype.onClick=function(event){"use strict";var permitted;if(this.trackingClick){this.targetElement=null;this.trackingClick=false;return true}if(event.target.type==="submit"&&event.detail===0){return true}permitted=this.onMouse(event);if(!permitted){this.targetElement=null}return permitted};FastClick.prototype.destroy=function(){"use strict";var layer=this.layer;if(this.deviceIsAndroid){layer.removeEventListener("mouseover",this.onMouse,true);layer.removeEventListener("mousedown",this.onMouse,true);layer.removeEventListener("mouseup",this.onMouse,true)}layer.removeEventListener("click",this.onClick,true);layer.removeEventListener("touchstart",this.onTouchStart,false);layer.removeEventListener("touchmove",this.onTouchMove,false);layer.removeEventListener("touchend",this.onTouchEnd,false);layer.removeEventListener("touchcancel",this.onTouchCancel,false)};FastClick.notNeeded=function(layer){"use strict";var metaViewport;var chromeVersion;if(typeof window.ontouchstart==="undefined"){return true}chromeVersion=+(/Chrome\/([0-9]+)/.exec(navigator.userAgent)||[,0])[1];if(chromeVersion){if(FastClick.prototype.deviceIsAndroid){metaViewport=document.querySelector("meta[name=viewport]");if(metaViewport){if(metaViewport.content.indexOf("user-scalable=no")!==-1){return true}if(chromeVersion>31&&window.innerWidth<=window.screen.width){return true}}}else{return true}}if(layer.style.msTouchAction==="none"){return true}return false};FastClick.attach=function(layer){"use strict";return new FastClick(layer)};if(typeof define!=="undefined"&&define.amd){define(function(){"use strict";return FastClick})}else if(typeof module!=="undefined"&&module.exports){module.exports=FastClick.attach;module.exports.FastClick=FastClick}else{window.FastClick=FastClick}});require.register("switchery/switchery.js",function(exports,require,module){var transitionize=require("transitionize"),fastclick=require("fastclick");module.exports=Switchery;var defaults={color:"#64bd63",secondaryColor:"#dfdfdf",className:"switchery",disabled:false,disabledOpacity:.5,speed:"0.4s"};function Switchery(element,options){if(!(this instanceof Switchery))return new Switchery(element,options);this.element=element;this.options=options||{};for(var i in defaults){if(this.options[i]==null){this.options[i]=defaults[i]}}if(this.element!=null&&this.element.type=="checkbox")this.init()}Switchery.prototype.hide=function(){this.element.style.display="none"};Switchery.prototype.show=function(){var switcher=this.create();this.insertAfter(this.element,switcher)};Switchery.prototype.create=function(){this.switcher=document.createElement("span");this.jack=document.createElement("small");this.switcher.appendChild(this.jack);this.switcher.className=this.options.className;return this.switcher};Switchery.prototype.insertAfter=function(reference,target){reference.parentNode.insertBefore(target,reference.nextSibling)};Switchery.prototype.isChecked=function(){return this.element.checked};Switchery.prototype.isDisabled=function(){return this.options.disabled||this.element.disabled};Switchery.prototype.setPosition=function(clicked){var checked=this.isChecked(),switcher=this.switcher,jack=this.jack;if(clicked&&checked)checked=false;else if(clicked&&!checked)checked=true;if(checked===true){this.element.checked=true;if(window.getComputedStyle)jack.style.left=parseInt(window.getComputedStyle(switcher).width)-parseInt(window.getComputedStyle(jack).width)+"px";else jack.style.left=parseInt(switcher.currentStyle["width"])-parseInt(jack.currentStyle["width"])+"px";if(this.options.color)this.colorize();this.setSpeed()}else{jack.style.left=0;this.element.checked=false;this.switcher.style.boxShadow="inset 0 0 0 0 "+this.options.secondaryColor;this.switcher.style.borderColor=this.options.secondaryColor;this.switcher.style.backgroundColor=this.options.secondaryColor!==defaults.secondaryColor?this.options.secondaryColor:"#fff";this.setSpeed()}};Switchery.prototype.setSpeed=function(){var switcherProp={},jackProp={left:this.options.speed.replace(/[a-z]/,"")/2+"s"};if(this.isChecked()){switcherProp={border:this.options.speed,"box-shadow":this.options.speed,"background-color":this.options.speed.replace(/[a-z]/,"")*3+"s"}}else{switcherProp={border:this.options.speed,"box-shadow":this.options.speed}}transitionize(this.switcher,switcherProp);transitionize(this.jack,jackProp)};Switchery.prototype.colorize=function(){this.switcher.style.backgroundColor=this.options.color;this.switcher.style.borderColor=this.options.color;this.switcher.style.boxShadow="inset 0 0 0 16px "+this.options.color};Switchery.prototype.handleOnchange=function(state){if(typeof Event==="function"||!document.fireEvent){var event=document.createEvent("HTMLEvents");event.initEvent("change",true,true);this.element.dispatchEvent(event)}else{this.element.fireEvent("onchange")}};Switchery.prototype.handleChange=function(){var self=this,el=this.element;if(el.addEventListener){el.addEventListener("change",function(){self.setPosition()})}else{el.attachEvent("onchange",function(){self.setPosition()})}};Switchery.prototype.handleClick=function(){var self=this,switcher=this.switcher,parent=self.element.parentNode.tagName.toLowerCase(),labelParent=parent==="label"?false:true;if(this.isDisabled()===false){fastclick(switcher);if(switcher.addEventListener){switcher.addEventListener("click",function(){self.setPosition(labelParent);self.handleOnchange(self.element.checked)})}else{switcher.attachEvent("onclick",function(){self.setPosition(labelParent);self.handleOnchange(self.element.checked)})}}else{this.element.disabled=true;this.switcher.style.opacity=this.options.disabledOpacity}};Switchery.prototype.markAsSwitched=function(){this.element.setAttribute("data-switchery",true)};Switchery.prototype.markedAsSwitched=function(){return this.element.getAttribute("data-switchery")};Switchery.prototype.init=function(){this.hide();this.show();this.setPosition();this.markAsSwitched();this.handleChange();this.handleClick()}});require.alias("abpetkov-transitionize/transitionize.js","switchery/deps/transitionize/transitionize.js");require.alias("abpetkov-transitionize/transitionize.js","switchery/deps/transitionize/index.js");require.alias("abpetkov-transitionize/transitionize.js","transitionize/index.js");require.alias("abpetkov-transitionize/transitionize.js","abpetkov-transitionize/index.js");require.alias("ftlabs-fastclick/lib/fastclick.js","switchery/deps/fastclick/lib/fastclick.js");require.alias("ftlabs-fastclick/lib/fastclick.js","switchery/deps/fastclick/index.js");require.alias("ftlabs-fastclick/lib/fastclick.js","fastclick/index.js");require.alias("ftlabs-fastclick/lib/fastclick.js","ftlabs-fastclick/index.js");require.alias("switchery/switchery.js","switchery/index.js");if(typeof exports=="object"){module.exports=require("switchery")}else if(typeof define=="function"&&define.amd){define(function(){return require("switchery")})}else{this["Switchery"]=require("switchery")}})();

!function () {
  var $notification = $('.notification');

  $('button').click(function() {
    $(this).toggleClass('open');
  });
  
  Array.prototype.slice.call(document.querySelectorAll('input[type="checkbox"]')).forEach(function (el) {
    var switchery = new Switchery(el, { color: '#53d76a' });
  });

  setInterval(function() {
    $notification.addClass('active');
    setTimeout(function () { $notification.removeClass('active') }, 2000);
  }, 6000);
}();

              
            
!
999px

Console