Weebly is known to have an issue that causes some Add to Calendar buttons to not display correctly on webpages. To fix the issue, follow these steps:
In your Weebly dashboard, click Edit Site next to the website you placed your Add to Calendar button on
Click Settings in the blue bar on the top of the page
Select SEO from the options on the left side
Scroll down the Header Code section and paste this text inside the box:
<style type="text/css"> .wcustomhtml { overflow-y: visible !important; } </style>
To finish, Click Save in the bottom right corner.
*Note: If you already have some text inside the Header Code box, simply add a new line and add this at the end.
