An introduction to scroll-linked animations and what will be covered in the video.

• An overview of scroll-based animations and the types of effects achievable.
• Mention that creating such animations can be done without writing JavaScript or using third-party plugins.

Creating a basic scroll watcher animation to understand scroll listeners.

• Creation of a fixed-position scroll watcher bar that scales horizontally as the user scrolls.
• Usage of the 'scale' property in keyframe animations to manipulate the scroll watcher's width.
• Adjusting the transform origin to control the direction of the scroll watcher's growth.
• Correction of a mistakenly used 'animation' keyword when 'keyframes' was intended.

Implementing animations that fade images in and out based on scroll position.

• Introduction to the 'animation timeline' property and how it relates to scrolling.
• Customizing the start and end points of the animation using offsets and specifying the scroll axis.
• Explanation of additional keywords like 'block' and 'inline' for specifying scroll directions.
• Adjusting the animation with 'contain' and 'cover' to determine when the animation should start and end.

Creating an animation that responds to horizontal scrolling.

• Switching the animation timeline to 'scroll' to target the nearest ancestor with a scrollbar.
• Explanation of how the 'scroll' function changes context based on the nearest scrolling ancestor.
• Demonstration of how to target scrolling on the root element to create an animation that responds to vertical page scrolling.

Combining techniques to create a complex scroll-linked animation with multiple elements.

• Setting up an animation that fades the text out and increases the opacity of an image based on the scroll position.
• Fine-tuning the animation range with 'exit' and pixel offsets to control when the animation starts and ends.
• Applying a 'forwards' animation fill mode to ensure the animation's final state is maintained after scrolling.