Css3d with webgl question

There are plane objects in the webGL, and use Css3d to fuse div into the plane in the webGL. This part of the function has been implemented so far, but when I adjusted the transparency of the plane, the div could not show it
Has anyone dealt with this

You keep using this word “fuse” in other questions. What do you mean by that? WebGL planes are separate from CSS3D planes, and they will always behave independently. Can you show us a live example of what you have so far, and what you’re trying to accomplish?

this is my demo code.
When I set plane ‘material’ transparent to true(Line 78)
the Divs are not visible。
Want to set the plane to be translucent, and the div to be translucent。