---
title: "Use the HTML block in the drag-and-drop editor"
description: "Enable the HTML block at workspace level, add it in the template editor, and enter custom HTML directly in Signitic."
url: https://support.signitic.com/en/articles/9561114-use-the-html-block-in-the-drag-and-drop-editor
collection: "How Signitic works and the advanced editor"
updated: 2026-10-30
language: en
alternates: [fr, de, it, pt]
---

# Use the HTML block in the drag-and-drop editor

Enable the HTML block at workspace level, add it in the template editor, and enter custom HTML directly in Signitic.

> **Info:** The HTML block lets you insert a custom HTML fragment into the drag-and-drop editor when standard blocks are not enough.

## **❶** Enable the HTML block

Go to **Settings > Signature > Advanced** and enable the **Enable the HTML block** option.

![](https://staticfiles.gleap.io/p669e4628f35b0c8e9eff6ebe/tAXEgBz7WVy8F9WwYvRoEOkIxpVFG8fvjlj7iCTVUFsqaRa3LL4kQXR59dYAiKwhjlBZeNjJjhK.png)

## **❷** Add the block to a template

Open the **Template** tab, then click **Edit** to open the drag-and-drop editor.

In the left palette, add the **HTML block**.

When you select the block, the **HTML code** field appears in the right panel.

![](https://staticfiles.gleap.io/p669e4628f35b0c8e9eff6ebe/dWnMjWlKASY5t2tQkjaLSGpzuLaI0LjOlGoyIa6uj6uuax5IMWJoNy3t5UTMIUWDZ0VCxyCQTTI.png)

## **❸** Understand what you see in the editor

-   In the canvas, the block shows an `<html>` placeholder.
    
-   This is expected: the editor does not try to render arbitrary HTML directly inside the canvas.
    
-   In the final signature, the HTML fragment is rendered correctly.
    

## **❹** Understand the safety rules

-   The HTML is sanitized during preview and save.
    
-   Email-friendly structures remain allowed, including tables, text blocks, links, and images.
    
-   Sensitive tags such as `script`, `iframe`, and `form` are removed.
    
-   Links are limited to `http`, `https`, `mailto`, and `tel`.
    
-   Existing Twig tokens are preserved so signature variables continue to work.
    

## **❺** When to use this block

-   To add a very specific layout fragment that is not available through the standard blocks.
    
-   To preserve an email rendering based on HTML already validated by your teams.
    
-   To answer an advanced need without misusing the other editor blocks.
    

> **Warning:** **Important:** disabling the option removes the block from the palette, but HTML blocks already added to templates keep working.

> **Info:** **Good to know:** the placeholder in the editor does not mean the content is lost. It is only a visual hint while editing.

> **Success:** **Keep in mind:** the HTML block is mainly useful for advanced needs. For simple content, native blocks remain easier to maintain.