Framework7 Starter

HTML

<script src="https://unpkg.com/framework7@3.0.0/js/framework7.js"></script>
<link rel="stylesheet" href="https://unpkg.com/framework7@3.0.0/css/framework7.css">
<div id="app">
  <div class="panel panel-left panel-cover theme-dark">
    <div class="page"></div>
  </div>
  <div class="panel panel-right panel-reveal theme-dark">
    <div class="page"></div>
  </div>
  <div class="view view-main ios-edges">
    <div class="page" data-name="home">
      <div class="navbar">
        <div class="navbar-inner">
          <div class="left">
            <a href="#" class="link panel-open" data-panel="left">Left Panel</a>
          </div>

        </div>
      </div>
      <!-- Toolbar-->

      <!-- Scrollable page content-->
      <div class="page-content">
      


       
        <div id="sliderContainer">
            <div class="item-cell item-cell-shrink-3">
              
                
<div class="range-slider color-orange" id="videoRangeSlider" data-label="true"></div>
        
            </div>
        </div>
        
        
        
        
        
      </div>
    </div>
  </div>
</div>

CSS

#sliderContainer {
  margin: 50px 10px
}
.range-knob-wrap {
    top: 0%;
    font-size: 12px;
    position: relative;
    width: 60px !important;
    background: #47ad50;
    color: #fff;
    padding: 0 5px 8px;
    border-radius: 3px;
    margin-top: -15px !important;
    margin-left: -35px !important;
}

JavaScript

var $$ = Dom7

var app = new Framework7({
  root: '#app',
  theme: 'auto',
  methods: {
  	tst () {
    	alert('a')
    }
  },
  routes: [{
    path: '/about/',
    content: `
      	<div class="page">
          <div class="navbar">
            <div class="navbar-inner sliding">
            	<div class="left">
                <a href="#" class="link back">
                  <i class="icon icon-back"></i>
                  <span class="ios-only">Back</span>
                </a>
              </div>
              <div class="title">About</div>
            </div>
          </div>
          <div class="page-content">
            <div class="block block-strong">About page</div>
          </div>
        </div>
      `
  }]
});
var startTime, endTime, selectedStart

rangeSlider = app.range.create({
                el: '.range-slider',
                label: true,
                step: 1,
                min: 0,
                max: 2000,
                on: {
                    change: function (e) {
                        selectedStart = formatTime(e.value);
                        e.knobs[0][0].innerText = "Start "+selectedStart;
                    }
                }
            });
rangeSlider.knobs[0][0].innerText= 'Start 00:00';
function formatTime(time) {
    time = Math.round(time);
    var minutes = Math.floor(time / 60),
        seconds = time - minutes * 60;
    seconds = seconds < 10 ? '0' + seconds : seconds;
    minutes = minutes < 10 ? '0' + minutes : minutes;
    return minutes + ":" + seconds;
}

var viewMain = app.views.create('.view-main');