Styles not transferring from desktop to laptop and mobile


Does any know why my styles when viewing on desktop, aren’t transferring to laptop and mobile views? For example, the H3 heading I have on the desktop changes when I click the laptop viewport.

Desktop view:

Laptop view:

Any thoughts? Even the button interaction on the desktop view isn’t transferring to mobile. Is there something I can do to fix this? Thank you in advance for your help.

Here is my site Read-Only: Webflow - MRK Dressage
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