使用 Chrome 打印时，上一页上的 HTML 标题边框部分显示

标签 html css google-chrome puppeteer

如上所述，问题是部分边框显示在上一页上。在背景中也看到了相同的行为。

代码(从代码片段打印时不起作用，因此包含为文本):

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>

  <style>
    thead {
      border: 2px solid red;
    }

    table {
      border-collapse: collapse;
    }
  </style>
</head>
<body>
<table>
  <thead>
  <tr>
    <td>Col 1</td>
    <td>Col 2</td>
    <td>Col 3</td>
  </tr>
  </thead>
  <tbody>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
  </tbody>
</table>
</body>
</html>

Chrome 打印问题: enter image description here

最佳答案

发生这种情况是因为border与 <table> 重叠并且在 table 外面。因此您的文档以 border 开头的<thead>接下来是 <table> 。您可以使用 box-shadow (使用 inset )以获得内边框。

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <style>
    thead {
      box-shadow: inset 0 0 0 2px red;
    }
    thead th {
      padding: 2px 2px;
    }
    table {
      border-collapse: collapse;
    }
  </style>
</head>
<body>
<table>
  <thead>
  <tr>
    <th>Col 1</th>
    <th>Col 2</th>
    <th>Col 3</th>
  </tr>
  </thead>
  <tbody>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
  </tbody>
</table>
</body>
</html>

...或 transform: translateY(2px);关于<table> ( margin 也不起作用):

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <style>
    thead {
      border:2px solid red;
    }
    table {
      border-collapse: collapse;
      transform: translateY(2px);
    }
  </style>
</head>
<body>
<table>
  <thead>
  <tr>
    <th>Col 1</th>
    <th>Col 2</th>
    <th>Col 3</th>
  </tr>
  </thead>
  <tbody>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
    <tr><td>A1</td><td>A2</td><td>A3</td></tr> <tr><td>B1</td><td>B2</td><td>B3</td></tr>
    <tr><td>C1</td><td>C2</td><td>C3</td></tr> <tr><td>D1</td><td>D2</td><td>D3</td></tr>
  </tbody>
</table>
</body>
</html>

关于使用 Chrome 打印时，上一页上的 HTML 标题边框部分显示，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/57575827/

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