kujirahand/idea2.html

## idea2.html
<!DOCTYPE html><meta charset="utf-8"><html><body>
  <!-- UIを作成 -->
  <div id="g"></div>
  <p style="clear:both"></p>
  <p><a id="save" download="idea.txt" href="#">保存</a></p>
  <!-- JavaScript -->
  <script>
    // 3×3のグリッドを作成
    const g = document.querySelector('#g')
    const items = []
    for (let i = 0; i < 9; i++) {
      const e = document.createElement('textarea')
      e.innerHTML = '？'
      if (i == 4) { e.className = 'center' }
      g.appendChild(e)
      items.push(e)
    }
    // 保存リンクでデータをダウンロード
    const save = document.querySelector('#save')
    save.onclick = (e) => {
      const m = items.map(i => i.value)
      const text = m.join('\n')
      const blob = new Blob([text], {'type': 'text/plain'})
      save.href = URL.createObjectURL(blob)
    };
  </script>
  <style>
    #g { width: 600px; }
    textarea {
      padding: 0px; margin: 0px;
      width: 198px; height: 150px;
      font-size: 1.3em; float: left;
    }
    .center { background-color: #fff0f0; }
  </style>
</body></html>
	<!DOCTYPE html><meta charset="utf-8"><html><body>
	<!-- UIを作成 -->
	<div id="g"></div>
	<p style="clear:both"></p>
	<p><a id="save" download="idea.txt" href="#">保存</a></p>
	<!-- JavaScript -->
	<script>
	// 3×3のグリッドを作成
	const g = document.querySelector('#g')
	const items = []
	for (let i = 0; i < 9; i++) {
	const e = document.createElement('textarea')
	e.innerHTML = '？'
	if (i == 4) { e.className = 'center' }
	g.appendChild(e)
	items.push(e)
	}
	// 保存リンクでデータをダウンロード
	const save = document.querySelector('#save')
	save.onclick = (e) => {
	const m = items.map(i => i.value)
	const text = m.join('\n')
	const blob = new Blob([text], {'type': 'text/plain'})
	save.href = URL.createObjectURL(blob)
	};
	</script>
	<style>
	#g { width: 600px; }
	textarea {
	padding: 0px; margin: 0px;
	width: 198px; height: 150px;
	font-size: 1.3em; float: left;
	}
	.center { background-color: #fff0f0; }
	</style>
	</body></html>