为弹出式模态框添加功能 - 改变div结构

示例代码：

旧的HTML结构：

  

    
Modal Header
    X
  
  

    
Modal content goes here.
  
  

    Cancel
    Save
  

新的HTML结构：

  

    

      
Modal Header
      X
    
    

      
Modal content goes here.
    
    

      Cancel
      Save
    
  

CSS样式：

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
  position: relative;
  margin: auto;
  width: 80%;
  max-width: 800px;
  background-color: #fff;
  border-radius: 5px;
  padding: 20px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.modal-header h2 {
  margin: 0;
}

.modal-body {
  margin-bottom: 20px;
}

.modal-content p {
  margin: 0;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
}

.close-button {
  background-color: transparent;
  border: none;
  font-size: 20px;
  cursor: pointer;
  padding: 0;
}

.cancel-button,
.save-button {
  background-color: #007bff;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  margin-left: 10px;
}

.cancel-button:hover,
.save-button:hover {
  background-color: #0056b3;
}

JavaScript代码：

const modal = document.querySelector('.modal');
const closeButton = document.querySelector('.close-button');
const cancelButton = document.querySelector('.cancel-button');
const saveButton = document.querySelector('.save-button');

function closeModal() {
  modal.classList.remove('show');
}

function cancelModal() {
  closeModal();
}

function saveModal() {
  // Save modal data
  closeModal();
}

function openModal() {
  modal.classList.add('show');
}

closeButton.addEventListener('click', closeModal);
cancelButton.addEventListener('click', cancelModal);
saveButton.addEventListener('click', saveModal);

// Open the modal when the page loads (for testing purposes)
window.addEventListener('load', openModal);