给网页添加一个弹窗--HTML

<style>

  .popup-container {

    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 9999;
    justify-content: center;
    align-items: center;
  }
  
  .popup {
animation: popOut .4s ease-in-out forwards;
transform-origin: center center;
transform: scale(0);
}
@keyframes popOut {
to { transform: scale(1); }
}



  .popup-content {
    background-color: #fff;
    padding: 30px;
    max-width: 400px;
    text-align: center;
    border-radius: 6px; /* 添加弹窗的圆角边框 */
  }

  .popup-title {
    font-size: 21px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #000000
  }

  .popup-text {
 text-align: left;
    font-size: 14px;
    margin-bottom: 20px;
    color:    #808080
  }

  .popup-button {
    background-color: #007bff;
    color: #fff;
    border: none;
    padding: 6px 20px;
    font-size: 13px;
    cursor: pointer;
    border-radius: 4px; /* 添加圆角 */
    background-color: #B0C4DE;
  }
  
  .slide-container {
width: 100%;
height: 200px;
overflow: hidden; /* 隐藏超出部分 */
}
.slide-content {
width: 100%; /* 比容器宽度多一定值，保证有滚动条 */
height: 100%;
padding: 5px;  /* 内容区域留白 */
overflow-y: scroll; /* y方向滚动 */
}
}
</style>

<div class="popup-container">
  <div class="popup-content">
    <h2 class="popup-title">公告</h2>
    <div class="popup"><div class="slide-container"><div class="slide-content"><p class="popup-text">
    您好，仔细欢迎访问的我个人Blog
这里将会记录我的一些生活内容......
此处省略一万字😂
      </font></i></div>
</div></div>
    </p>
    <button class="popup-button" id="popup-button">我已知晓
  </div>
</div>

<script>
  var popupContainer = document.querySelector('.popup-container');
  var popupButton = document.getElementById('popup-button');

  // 显示弹窗
  function showPopup() {
    popupContainer.style.display = 'flex';
  }

  // 隐藏弹窗
  function hidePopup() {
    popupContainer.style.display = 'none';
  }

  // 显示初始弹窗
  showPopup();

  // 处理关闭按钮点击事件
  popupButton.addEventListener('click', hidePopup);
</script>

</body>

{/collapse-item}