在网格旁边添加按钮

<div class="grid-container">
  <div class="grid-item">内容1</div>
  <div class="grid-item">内容2</div>
  <div class="grid-item">内容3</div>
  <button id="myButton">点击我</button>
</div>

.grid-container {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-gap: 10px;
}

.grid-item {
  background-color: #f2f2f2;
  padding: 10px;
}

#myButton {
  background-color: #4CAF50;
  color: white;
  border: none;
  padding: 10px 20px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  cursor: pointer;
}

document.getElementById("myButton").addEventListener("click", function() {
  // 在这里添加按钮点击后的操作
  alert("按钮被点击了！");
});