<!doctype html>
<html>

<head>
  <meta charset="utf-8">
  <title>本地日期时间选择器示例（兼容版）</title>
  <style>
    div {
      margin-bottom: 10px;
    }

    input:invalid+span:after {
      content: '✖';
      padding-left: 5px;
    }

    input:valid+span:after {
      content: '✓';
      padding-left: 5px;
    }
  </style>
</head>

<body>
  <form>
    <div class="nativeDateTimePicker">
      <label for="party">选择聚会的日期时间：</label>
      <input type="datetime-lo