Google map

To set your location, go to theme root directory, open js folder, find main.js edit it with text editor (like Notepad++). Go to line main.js and change the latitude and longitude. First one is latitude and second one is longitude. To find your locations latitude and longitude, click here
jQuery Code

var map;  
function initMap() {  
 map = new google.maps.Map(document.getElementById(map), {  
 center: {lat: -34.397, lng: 150.644},  
 zoom: 8  

If you want to change styles of the google map check this site