ImagesLesson 96Free preview
Image Comparison Slider
This lesson is part of How To · All levels
Summary
The image comparison slider allows users to compare two images by swiping an adjuster to the left and right. One image is displayed full as the base, while the second image is cut according to the slider position. This technique is often used to show the results of photo editing, renovation, or differences between two versions of a design.
Key points
- Two images are stacked in the same position in a positioned container: relative.
- The comparison image is cut using clip-paths or controlled widths.
- The input type=range gives the slider's position value in percent.
- Event input updates the image snippet and the position of the dividing line directly.
- The container uses overflow: hidden so that the image part does not go out of bounds.
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