initial

utils/htmlUtils.js

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+export function div(className) {
+  const view = document.createElement('div');
+  view.className = className;
+  return view;
+}
+export function button(name, callback, className = '') {
+  const view = document.createElement('button');
+  view.className = className;
+  view.addEventListener('pointerdown', callback);
+  view.innerHTML = name;
+  return view;
+}