![]() Pass in two ranges and you’ll get a function you can use to get the mapped value. They already provide a mapRange() function for this purpose. In this project, I was able to use GSAP and that meant using some of its utility functions. We can reference an element and work out the value from its center using a mapping function. For example, the left side of the viewport should be -1 for x, and 1 for the right side. Yeah, if we want, we also can do that using Javascript, but it would be more complex than just limit the number of characters.We want to map these values around a center point. What if I want text should be shown in 4 lines than if the text is longer than that, we will show something else (maybe. ![]() To limit the length of text, we can use Javascript, but at that time, we can only control the number of characters not the number of lines. You can read for more examples and detail here: Link It's not really good in some case, but it's a trade off. The image will remain its aspect ratio but will be clipped. This will come in handy later when setting the sticky sidebar. The -offset variable can now be reused on any child element inside the sidebar. Notice that the top value is set to a scoped CSS custom property. If we use object-fit: cover we will have a picture like this: is that what they are calling parallax where can i read up on such things. With these two CSS properties, the sidebar element sticks to the top of the viewport with an offset to give it some breathing room. In most cases, I usually use cover and contain.
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