Openstreet map with leaflet not appearing on mobile phones

I have set up osm on ubuntu below is how my codes are. The issue the map appears perfectly on desktop browser but it doesnt appear on mobile phone browser. What could be issue? Is there any tweak needed for mobile support?

 <div id="right" style="overflow: auto;width:calc(100%-230px);height: 100vh; background:#eeeeee;">
                                       <div id="map" style="position:absolute;top:0px;left:230px;right: 0; bottom: 0;width:calc(100%-230px);height:65%;">

                                 </div> 
                                 <div id="dataTable" style="overflow: auto;position:absolute;left:230px;right: 0; bottom: 0;width:calc(100%-230px);height:35%;background:#eeeeee;">
                            <div class="x_panel">
                                  <div class="x_title">
                                    <h2>Vehicle List </h2>
                                    <ul class="nav navbar-right panel_toolbox">
                                      <li><a class="collapse-link"><i class="fa fa-chevron-up"></i></a>
                                      </li>
                                      <li class="dropdown">
                                        <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false"><i class="fa fa-wrench"></i></a>
                                        <ul class="dropdown-menu" role="menu">
                                          <li><a href="#">Settings 1</a>
                                          </li>
                                          <li><a href="#">Settings 2</a>
                                          </li>
                                        </ul>
                                      </li>
                                      <li><a class="close-link" onclick='closeDataTable()'><i class="fa fa-close"></i></a>
                                      </li>
                                    </ul>
                                    <div class="clearfix"></div>
                                  </div>
                                  <div class="x_content" id="tableContent">

                                    <table id="dashboardGrid" class="table " >
                                          <thead>
                                            <tr>
                                                <th>#</th>
                                              <th>Group</th>
                                              <th>Sub Group</th>
                                              <th>Stat.</th>
                                              <th>Veh. #</th>
                                              <th>View</th>

                                              </tr>
                                          </thead>
                                          <tbody >


                                          </tbody>
                                        </table>


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

                               </div>

Below is how is my init function for map to appear in the div.

 function init() {
             var map = L.map('map');

             //add a tile layer to add to our map, in this case it's the 'standard' OpenStreetMap.org tile server
             L.tileLayer('http://*.*.*.*/hot/{z}/{x}/{y}.png', {
                attribution: '&copy; <a href="http://openstreetmap.org">OpenStreetMap</a> contributors',
                maxZoom: 18
             }).addTo(map);

             map.attributionControl.setPrefix(''); // Don't show the 'Powered by Leaflet' text. Attribution overload

             var london = new L.LatLng(-1.935114,30.082111); // geographical point (longitude and latitude)
             map.setView(london, 13);
             var redMarker = L.ExtraMarkers.icon({
                    icon: 'fa-motorcycle',
                    markerColor: 'orange-dark',
                    shape: 'circle',
                    prefix: 'fa'
                   });
                   var myPopup = L.DomUtil.create('div', 'infoWindow');
           myPopup.innerHTML = "<div id='info'><p id='title'>title</p><p>address</p></div>";
                   L.marker([-1.935114,30.082111], {icon: redMarker,}).addTo(map).bindPopup(myPopup);
                   //L.marker([-1.935114,30.082111], {icon: redMarker,}).addTo(map).bindPopup('<strong>Science Hall</strong><br>Where the GISC was born.');




                }