Code structure 1. Document type <!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"> Title of document <title>Basemap</title> 2. ArcGIS API <link rel="stylesheet" href="https://js.arcgis.com/3.17/esri/css/esri.css"> <script src="https://js.arcgis.com/3.17/"></script> 3. Script <script> var map; require([ "esri/map", "dojo/domReady!", ], function(Map) { require(["esri/map", "dojo/domReady!"], function(Map) { map = new Map("map1", { center: [26.233592, 44.989934], zoom: 12, basemap: "osm"}); }); }); </script> 4. Style </p> <style>html, body, #map1 { padding: 0; margin: 0; height: 100%; } </style> <p> 5. Body <body></p> <div id="map1"></div> <p></body> Final result