调整Div中的按钮和文本字段

<div id="myDiv">
  <input type="text" id="myInput" />
  <button id="myButton">Submit</button>
</div>

#myDiv {
  background-color: #f2f2f2;
  padding: 10px;
}

#myInput {
  width: 200px;
  height: 30px;
  margin-bottom: 10px;
}

#myButton {
  background-color: #4caf50;
  color: white;
  padding: 10px 20px;
  border: none;
  cursor: pointer;
}

document.getElementById("myButton").addEventListener("click", function() {
  var inputText = document.getElementById("myInput").value;
  alert("输入的文本是：" + inputText);
});