MJML中固定列宽高及移动端渲染异常问题求助

Got it, let's work through this MJML problem you're facing. First off, you're right—height isn't a valid attribute for mj-column, and that's probably the root cause of those weird width jumps on mobile when resizing the window. Here are a few solid workarounds to get your email template looking exactly how you want:

1. Use mj-wrapper to Control Height & Background #

The mj-wrapper component supports both height and background-color, and it plays nicely with MJML's responsive rendering. Wrap your problematic mj-column inside a wrapper, and move the background color and height settings there:

<mj-section>
  <mj-wrapper background-color="yellow" height="300px"> <!-- Adjust height as needed -->
    <mj-column>
      <!-- Your content goes here (text, images, buttons, etc.) -->
      <mj-text>Your email content</mj-text>
    </mj-column>
  </mj-wrapper>
</mj-section>

This way, the wrapper handles the height and background, while the column focuses on organizing content. MJML's mobile rendering logic won't get confused by invalid attributes, so the width jump issue should disappear.

2. Force Column Height with Internal Spacers/Dividers #

If you don't want to add a wrapper, you can use mj-spacer or mj-divider inside the column to "push" it to your desired height. Keep the background color on the column (since that is supported) and skip the invalid height attribute:

<mj-section>
  <mj-column background-color="yellow">
    <!-- Add a transparent spacer to set the column height -->
    <mj-spacer height="300px" />
    <!-- Your content -->
    <mj-text>Your email content</mj-text>
  </mj-column>
</mj-section>

The spacer will force the column to expand to the specified height, and since we're not using the unsupported height attribute on the column itself, mobile rendering stays stable.

3. Double-Check Your MJML Structure & Version #

Sometimes weird rendering glitches come from messy nesting or outdated MJML versions:

• Make sure you're using the latest stable MJML version (v4.x as of now) to avoid known responsive bugs.
• Avoid nesting mj-section inside mj-column—stick to the standard structure: mj-container → mj-section → mj-column.
• Ensure your mj-section doesn't have conflicting width settings that might override the column's responsive behavior.

Any of these approaches should fix the mobile width jump and let you replicate your target template without relying on invalid mj-column attributes.

内容的提问来源于stack exchange，提问作者ferdi_