First, create a landing page to test the new idea.
Second, collect user email address when they fill the sign-up form on my page.
Third, collect user activities on my page.
How can I achieve all 3 things? I could not find any tutorials to do so. Thanks for the help!
Iād suggest this 30 minute video course/tutorial on building a landing page with Webflow & CSS grid. You should be able to modify the result to fit your needs.