Reflection Length
reflection-length
The reflection-length parameter sets how far the reflection extends below the subject. It defaults to 1.0, the whole object’s height.
A whole number is pixels, multiplied by dpr. A decimal from 0 to 1.0 is a fraction of each object’s own height, so in an image with several objects of different heights each reflection is scaled to its own subject rather than to the canvas.
Shortening the reflection is the usual way to keep the output from doubling in height. A negative value falls back to the default and is left out of the X-Imgix-Params response header.

