# Heading

1. From your Shopify admin, go to **Online Store** **->** **Themes**.
2. Find the theme that you want to edit, and then click **Customize**.
3. Scroll down to **Popup group** at the bottom, Click **Add section** and choose "**Toolbar mobile**".
4. From the side menu, select **Newsletter popup**. Click **+ Add block** and select **"Heading"** block, or click the **Search** bar to enter a search term.

<table><thead><tr><th width="235">Setting</th><th>Description</th></tr></thead><tbody><tr><td>Heading</td><td>Add text to display as a section heading<br><em><mark style="color:red;">(Leave the field blank to hide the heading)</mark></em></td></tr><tr><td>Heading size</td><td><p>Font size of text:</p><ul><li><strong>Default</strong></li><li><strong>XX-Small</strong></li><li><strong>X-Small</strong></li><li><strong>Small</strong></li><li><strong>Medium</strong></li><li><strong>Large</strong></li><li><strong>X-Large</strong></li><li><strong>XX-Large</strong></li><li><strong>XXX-Large</strong></li></ul></td></tr></tbody></table>

#### Block padding

<table><thead><tr><th width="235">Setting</th><th>Description</th></tr></thead><tbody><tr><td>Top margin</td><td>Determines the height of the top outside space of the section. Can be from <strong>0px</strong> to <strong>100px</strong>, increasing arithmetically of <strong>1px</strong> (pixel).</td></tr><tr><td>Bottom margin</td><td>Determines the height of the bottom outside space of the section. Can be from <strong>0px</strong> to <strong>100px</strong>, increasing arithmetically of <strong>1px</strong> (pixel).</td></tr></tbody></table>
