Help removing link animation on heading text when Flex animation is applied site-wide

Hi! I love the Flex animation and am happy with how it looks on paragraph links, but I would like to remove it on heading links ie "Copywriter and author." Is there a way to disable and target this underline specifically? I've tried the following code targeted at a specific section with no luck.

To remove the line -

a.toggle_trigger {
  color: #000000;
}
  
  a.toggle_trigger:after {
    display: none !important;
  }

To change the color - 

/* STYLING THE LINKS */
  .sqs-block h3 a, .sqs-block body a {
  color: #000000;
	}


.tweak-global-animations-animation-type-flex .sqs-block{
  h3 a, body a {
 background-image: linear-gradient(@punk,@punk),linear-gradient(@punk,@punk) !important;
	}
}

Thanks in advance! The password to my site is: playtime 🤸‍♀️

Hi,

Can you share link to page where you use heading text? We can check text selector easier