## Task
Center the child element (`div` with the class name `child`) within the parent element (`div` with the class name `parent`) using absolute positioning.

Steps:
1. Apply `absolute` positioning to the child element.
2. Calculate the values for the `top` and `left` properties to center the child element within the parent element. The parent element has a width and height of `220px`, while the child element has a width and height of `80px`.
3. Ensure that one element has `absolute` positioning, and the other has `relative` positioning to establish the correct positioning context. Otherwise, the absolute positioning will be relative to the `body` element.

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1. To calculate the value for the `top` property, use the formula: `(parentHeight - childHeight) / 2`.
2. To calculate the value for the `left` property, use the formula: `(parentWidth - childWidth) / 2`.

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Level up your styling skills by mastering advanced CSS techniques for modern web design. Position and manage elements with precision using advanced positioning strategies. Create smooth transitions and engaging animations to enhance user experience. Transform and manipulate elements for dynamic visual effects. Build responsive designs that adapt across devices and learn to streamline your workflow with CSS preprocessors like Sass.

Research what learners can expect from this advanced HTML and CSS styling course. What do you need to know before starting the course? What topics will be covered in it?

Position and manage elements on the web pages. Learn about the different positioning properties, discover how to use the stacking order to control the visibility of elements that overlap each other, and finally, handle content overflow. 

Research the power of transitions and learn how to improve the user experience. Discover how to liven properties smoothly and gradually, creating seamless state transitions.

Learn about the animation property and how it can be used to create dynamic and engaging designs. Discover how to create complex animations using keyframes and how to control the animation.

Explore the transformation property, which allows modifying the appearance and position of elements on a webpage. Learn how to scale, rotate, skew, and translate elements in two and three dimensions. Combine multiple transformations to create more complex effects.

The principles and techniques used in adaptive/responsive design aim to make websites and applications accessible and visually appealing across different devices, screen sizes, and orientations.

Learn about preprocessors in CSS and how they can help to write more efficient and maintainable code. Understand how to use preprocessors to simplify the workflow and generate cleaner CSS code.

Challenge: Implement Absolute Positioning

Task