Crafting emails with text and images that adapt seamlessly for viewing in Outlook365, Gmail,

I have a PowerShell script that generates an HTML file named email.html. This file contains inline CSS and base64 encoded images, and it is sent to me daily as part of my website reports.

I would like all the content (text/images) in the body of this email to automatically resize based on the width of the email client's viewable area. I must admit that I have limited experience with HTML/CSS. Can you point out what I am doing wrong in the code snippet below? Please note that I have shortened the base64 text for the sake of brevity.

Code:

<!doctype html>
<html>

<head>
<style type="text/css">
    @media screen and (max-device-width:640px),
    screen and (max-width:640px) {
        .responsivetext {font-size: 2vw !important;width:auto;height:auto;vertical-align:middle}
    }
</style>

</head>

<body>
    <td style="font-family: Arial;" class="responsivetext">I have tried everything.  Why wont this text resize when resizing Outlook 2016?</td>
    <img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAAIEAIAAADwyk6cAAAABGdBTUEAALGPC/xhBQAAACBjSFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAABmJLR0T...." />
</body>

</html>

Answer №1

Dealing with this scenario myself, I understand the challenge of trying to achieve success on all fronts.

Unfortunately, Outlook lacks solid support for media queries and is often neglected in terms of mobile responsive email design. Can media queries be used in Outlook?

I recommend checking out this resource where you can create responsive HTML designs and test them out.

Answer №2

After several years of experience in HTML email development, I've found that Outlook poses the biggest challenge for this job.

If you're looking to understand what works and what doesn't across different email clients, check out this helpful resource:

Here are some key points to keep in mind about email clients and HTML emails:

  1. Many email clients have default CSS styles that can alter how your HTML content is displayed. Including CSS resets in the <head> section of your document can help prevent these changes.

  2. The styling applied to specific HTML elements matters significantly (e.g., while you can add padding to a <td> tag, you cannot do so with a <p> tag).

  3. Your actual screen size, not the size of the Outlook window, dictates how your HTML will be rendered in Outlook. Resizing the client window won't affect the display, as it adheres to the screen size.

  4. A <td> element must always be enclosed within <table> and <tr> elements – you cannot use it on its own.

Feel free to test the code snippet provided below. While it may not resize with the window in Outlook, viewing it on a mobile device will show the email adapting to fit the screen size.

<!doctype html>
<html>

<head>
<style type="text/css">
  /* HTML Email CSS Resets and Body Font */
  body, .body {
      text-size-adjust:none; -ms-text-size-adjust:none !important; -webkit-text-size-adjust:none !important; font-size: 16px; font-size: medium;
      font-family:'Arial', sans-serif;
  }
  .resizer, * { width: 100%; font-size:1em; }

  @media only screen and (max-width: 640px) {
    .resizer, * { font-size:2vw; }
  }

</style>

</head>

<body class="body">
  <table class="resizer">
    <tr>
      <td valign="middle" height="auto" width="auto">
        <p>I have tried everything. Why won't this text resize when resizing Outlook 2016?</p>
        <br>
        <img src="https://cdn-icons-png.flaticon.com/128/921/921594.png" style="width:10vw;" />
      </td>
    </tr>
  </table>
</body>

</html>

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