Spacers

Vertical spacing in HTML emails can be tricky, mainly because of inconsistent support for (and rendering of) margin, padding, and <br> tags.

Here's how easy it is to create simple yet reliable spacers for your emails, using basic HTML and Tailwind CSS utility classes.

Div

The simplest vertical spacer for HTML emails:

<div class="leading-4" role="separator">&zwj;</div>

How it works:

1. leading-4 sets the spacer's height with line-height: 16px;
2. role="separator" indicates the element is a divider, improving accessibility
3. ‍ adds 'content' inside, so that the <div> can take up height

You may specify a different height for smaller devices by using the sm: screen variant:

<div class="leading-4 sm:leading-2" role="separator">&zwj;</div>

Table

Styling <table> and <td> is better supported than <div> in HTML emails, particularly in Outlook for Windows.

If you need more control over the styling of your Spacer, use this one instead:

<table class="w-full" role="separator">
  <tr>
    <td class="leading-4">&zwj;</td>
  </tr>
</table>

Row

Need to add space between <table> rows?

<tr role="separator">
  <td class="leading-4">&zwj;</td>
</tr>

The default ARIA role for a <tr> is row, so we use role="separator" to indicate that this is a separator, not a table row.

Semantic

We can use an <hr> to create a semantic Spacer.

<hr class="border-0 text-white my-4 min-h-full">

How it works:

• we hide the line by resetting the border
• we give it the same color as the background of the page (for Outlook)
• we control the height with top and bottom margins

The min-h-full class is used for compatibility with Apple email clients.