Here is how to edit text block font size in a landing page in mailchimp
- Then click on "Campaigns" button in the left sidebar
- Then click on the "Edit" button
- Then click on the "Edit design" button
- Click on the pencil icon to edit the text block that you want to manage
- Then click on the "Style" tab
- Click the dropdown arrow next to the "Size" setting
- Select a font size from the size options
- Click "Save & Close" in the bottom right corner
- Finally, click on the "Save & Close" button in the bottom right corner of the page






