Hi there,
1. Select the headline gb-text-2151bf68, create a new selector mark.has-inline-color, so the new selector will become .gb-text-2151bf68 mark.has-inline-color.
2. Then set the selector’s color to transparent (rgba(0,0,0,0)), and add a background gradient to it.
3. Set background-clip to text.
Here’s a screenshot for your reference:
https://app.screencast.com/ICmliYCt3ITMv