Change index menu padding for only mobile view

Site URL: https://www.tjarkprose.com

Hello!

How can I change the index menu padding only for mobile view? 

The padding distance for laptop view is already perfect

Any help would be greatly appreciated!

Add to Page Settings > Advanced > Header

<style>
  @media screen and (max-width:640px) {
  .tweak-index-nav-layout-inline .collection-nav-desc-wrapper .collection-nav {
    bottom: 20vw;
}
  }
</style>

You're the best!