Why do font sizes and styling in GrowSurf elements on my site appear smaller/larger than in the Campaign Editor preview?

Your website has a custom set of CSS styles already that GrowSurf elements will inherit. The GrowSurf window, floating button, and embeddable elements will use your existing font-size properties, among other CSS properties.

If your font size is appearing too small where legibility is an issue, you could try updating your CSS with the following piece of code:

Add to your CSS:

html, body { font-size: 100% }

Or add to your HTML:

<style>html, body { font-size: 100% }</style>