<div class="parallax" speed="2">
The blob changes his position according to how far you scroll. Notice how the blob aligns to the top.View on Codepen
speed values lead to different results.
(The number in the blobs tells their speed)
speedmakes content look more like default content.
speedmakes it look like it's behind the content.
<div class="parallax p-center" speed="2">
When you add the class
p-center, the blobs align to the middle of the screen.
<div class="parallax p-center" speed="-2">
While positive values make it look like "behind" the content, negative values make it look like it's in front of it.
speedvalue (e.g. -3).
speedvalue (e.g. -1.5).