The issue is present with every Homepage mobile overlay - Start, Impact, Mentor. and Help modules. Below is a specific example for Help module.
- On a mobile device (or in a browser mobile emulator) go to Homepage and click on "Get help with editing".
- The overlay opens with the following element not visible in the viewport (on iPhone it can be scrolled down to view it).
<h3 class="growthexperiments-homepage-module-section growthexperiments-homepage- module-section-subheader growthexperiments-homepage-module-subheader">Top help pages about editing</h3>