求助：MJML模板在Android Gmail应用中列宽显示异常

Let’s work through why your responsive flyer is breaking in Android Gmail and how to fix it:

First off, MJML 2.0.0 is a pretty outdated version—current stable releases are in the 4.x range. Older MJML builds don’t account for the quirks of Android Gmail’s rendering engine (which uses an older WebView under the hood), so upgrading should be your first move.

Step 1: Upgrade MJML to the Latest Version #

Run this command to grab the newest stable build:

npm install mjml@latest

Recompile your template with the updated tool—this alone might resolve the column width issue, as newer MJML versions include targeted fixes for Gmail Android’s rendering bugs.

Step 2: Force Column Widths for Mobile #

If upgrading doesn’t fully fix it, Android Gmail often ignores implicit width settings. Explicitly lock your columns to full width on mobile with inline styles (since Gmail doesn’t always respect head CSS):

<mj-column width="100%" style="min-width: 100% !important; width: 100% !important;">
  <mj-text style="word-break: normal; white-space: pre-line;">Your content here</mj-text>
</mj-column>

The word-break: normal prevents unnecessary line breaks, while min-width: 100% !important forces the column to fill the available screen space.

Step 3: Simplify Your Template Structure #

Android Gmail struggles with deeply nested mj-section and mj-column elements. Try flattening your layout—remove any unnecessary nested containers to reduce rendering confusion.

Step 4: Remove Unwanted Padding #

Gmail Android adds default padding to the email container, which can shrink your available width. Override this by setting zero padding on your root mj-body and outer mj-section:

<mj-body padding="0">
  <mj-section padding="0">
    <!-- Your columns/content here -->
  </mj-section>
</mj-body>

Step 5: Test on Real Devices (Not Just Chrome DevTools) #

Chrome’s device simulator doesn’t perfectly replicate Gmail Android’s rendering. Use tools like Litmus or Mailtrap to test, or send test emails to an Android device to verify fixes.

内容的提问来源于stack exchange，提问作者smjhunt