The text below the "Sign up for Alerts" button has the font too small compared to the specs

[GeorgiuCiprian]

Affected versions:

• Firefox 67.0

Affected Platforms:

• Windows 10 x64
• macOS 10.13
• Ubuntu 18.04 x64

Steps to reproduce:

1. Navigate to https://fx-breach-alerts.herokuapp.com/
2. Scroll down the page to the "Sign up for Alerts" button.
3. Inspect the "Firefox browser not required for a Firefox Account. You may receive info about Mozilla services." text.

Expected result:

• The text has a more readable size font, it seems to be at 8px currently; maybe a 10px would look better?

Actual result:

• The text is hardly readable, it has a very small size compared to the specs.

Additional notes:

• please observe the following comparison:
• current behavior with the font size at 8px.
  
• expected behavior with the font size at 10px.
  

[pdehaan]

Ref:

blurts-server/public/css/sign-up-banner.css

Lines 89 to 90 in c25f2ab

	.feature-tip-content span.browser-not-required {
	font-size: 8px;