电子邮件 HTML 边框在内容上，而不是在单元格上？

Question

<table border="0" cellpadding="0" cellspacing="0" width="100%">
  <tr>
    <td style="border:2px solid #ffffff; padding: 8px 10px;  border-radius: 0px; -moz-border-radius: 0px; -webkit-border-radius: 0px;  text-decoration:none;">
    <h3 style="color:#FFFFFF;font-family:Arial, Helvetica, sans-serif;font-size:16px;font-style:normal;font-weight:bold;line-height:150%;letter-spacing:2px;text-decoration:none;text-align:center;">
      <a alias="" conversion="false" data-linkto="https://" href="google.com" style="color:#ffffff;text-decoration:none; " title="Book Appointment">
        <span>BOOK AN APPOINTMENT<br> 
          TO VISIT US TOMORROW</span></a>
    </h3>
    </td>
  </tr>
</table>

无论我在哪里添加边框样式，它总是包裹整个单元格，而不是单元格 content 本身。

代码如下：

如果我将它添加到 span 元素上，它会完全打破边框，如下所示：

这是我需要的：

我做错了什么？

Answer 1

将边框放在 h3 上并使其成为 inline-block

td {
  background: grey;
  text-align: center;
}

h3 {
  border: 1px solid white;
  display: inline-block;
}

<table border="0" cellpadding="0" cellspacing="0" width="100%">
  <tr>
    <td style="padding: 8px 10px;  border-radius: 0px; -moz-border-radius: 0px; -webkit-border-radius: 0px;  text-decoration:none;">
      <h3 style="color:#FFFFFF;font-family:Arial, Helvetica, sans-serif;font-size:16px;font-style:normal;font-weight:bold;line-height:150%;letter-spacing:2px;text-decoration:none;text-align:center;">
        <a alias="" conversion="false" data-linkto="https://" href="google.com" style="color:#ffffff;text-decoration:none; " title="Book Appointment">
          <span>BOOK AN APPOINTMENT<br> 
          TO VISIT US TOMORROW</span></a>
      </h3>
    </td>
  </tr>
</table>

Answer 2

您的问题有多种解决方案：一种是在您的单元格内容周围添加一个 div，如下所示：

table {background: black}
.contour {
    border: 2px solid #ccc;
    width: 50%;
    height: 20%;
    margin: 10px auto
}

    <table border="0" cellpadding="0" cellspacing="0" width="100%">
      <tr>
        <td style="border:2px solid #ffffff; padding: 8px 10px;  border-radius: 0px; -moz-border-radius: 0px; -webkit-border-radius: 0px;  text-decoration:none;">
        <div class="contour">
          <h3 style="color:#FFFFFF;font-family:Arial, Helvetica, sans-serif;font-size:16px;font-style:normal;font-weight:bold;line-height:150%;letter-spacing:2px;text-decoration:none;text-align:center;">
            <a alias="" conversion="false" data-linkto="https://" href="google.com" style="color:#ffffff;text-decoration:none; " title="Book Appointment">
              <span>BOOK AN APPOINTMENT<br> 
                TO VISIT US TOMORROW</span></a>
          </h3>
        </div>
        </td>
      </tr>
    </table>

另一种方法是使用 a 元素作为文本周围的块

table {background:black}
a {
  display:block; 
  border:2px solid #ccc;
  width: 50%;
  margin: 0 auto;
  padding:10px;
}

<table border="0" cellpadding="0" cellspacing="0" width="100%">
  <tr>
    <td style="border:2px solid #ffffff; padding: 8px 10px;  border-radius: 0px; -moz-border-radius: 0px; -webkit-border-radius: 0px;  text-decoration:none;">
    <div class="contour">
      <h3 style="color:#FFFFFF;font-family:Arial, Helvetica, sans-serif;font-size:16px;font-style:normal;font-weight:bold;line-height:150%;letter-spacing:2px;text-decoration:none;text-align:center;">
        <a alias="" conversion="false" data-linkto="https://" href="google.com" style="color:#ffffff;text-decoration:none; " title="Book Appointment">
          <span>BOOK AN APPOINTMENT<br> 
            TO VISIT US TOMORROW</span></a>
      </h3>
    </div>
    </td>
  </tr>
</table>

Answer 3

不要为 table 设置样式，为内容设置样式并简化标记：

    <td>
        <a alias="" conversion="false" data-linkto="https://" href="google.com"
 style="display:inline-block;border:2px solid #ffffff; padding: 8px 10px;color:#FFFFFF;font-family:Arial, Helvetica, sans-serif;font-size:16px;font-style:normal;font-weight:bold;line-height:150%;letter-spacing:2px;text-decoration:none;text-align:center;" title="Book Appointment">
    BOOK AN APPOINTMENT<br> 
    TO VISIT US TOMORROW</a>
    </td>

Answer 4

这非常简单，并且可以在所有电子邮件客户端上一致地工作。

单行文字:

<table align="center" role="presentation" cellspacing="0" cellpadding="0" border="0" width="" style="margin: auto;">
  <tr>
    <td style="text-align: center;">
      <h3 style="margin: 0;"><a href="#" style="border: 2px solid #ffffff; font-family: sans-serif; font-weight: bold; font-size: 16px; line-height: 22px; text-decoration: none; padding: 20px 30px; color: #ff0000; display: block; letter-spacing: 2px;">Book An Appointment<br />To Visit Us Tomorrow</a></h3>
    </td>
  </tr>
</table>

两行文字:

<table align="center" role="presentation" cellspacing="0" cellpadding="0" border="0" width="260" style="margin: 0; border: 2px solid #ff0000;">
  <tr>
    <td style="background: #222222; border: 8px solid #222222; text-align: center;">
      <div style="padding: 10px 15px;">
        <a href="#" style="background: #222222; border: 1px solid #222222; font-family: sans-serif; font-weight: bold; font-size: 16px; line-height: 22px; text-decoration: none; color: #ffffff; display: block; letter-spacing: 2px; mso-line-height-alt: 22px;">Book An Appointment To Visit Us Tomorrow</a>
      </div>
    </td>
  </tr>
</table>

除非您需要 <h3> 屏幕阅读器，否则我建议将其删除。

祝你好运。

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