Trying to get modules to work

ts/tower.ts

@@ -0,0 +1,14 @@
+import { TowerMap } from 'tower_map.js';
+
+export function main() {
+  document.body.style.margin = '0';
+  document.body.style.backgroundColor = 'black';
+
+  const container = document.createElement('div');
+  document.body.appendChild(container);
+  container.style.width = '100vmin';
+  container.style.height = '100vmin';
+
+  const map = new TowerMap(container);
+  map.draw();
+};

ts/tower_map.ts

@@ -0,0 +1,14 @@
+export class TowerMap {
+  #prnt;
+
+  constructor(prnt: HTMLElement) {
+    this.#prnt = prnt;
+    this.#prnt.style.display = 'grid';
+  }
+
+  draw() {
+    this.#prnt.style.backgroundImage = 'url("images/land1.svg")';
+    this.#prnt.style.gridTemplateColumns = 'repeat(20, 1ft)';
+    this.#prnt.style.gridTemplateRows = 'repeat(20, 1ft)';
+  }
+}