<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <style> html { width: 100%; height: 100%; } body { width: 100%; height: 100%; margin: 0; } #map { width: 100%; height: 100%; } </style> </head> <body> <div id="map"></div> <script src="https://maps.googleapis.com/maps/api/js"></script> <script> // 即時関数 (() => { // 地図の設定と作成 cons