Graphic Elements aligning

Hey Community,

I’m new here. Trying to bring my design vision to code.
What i almost get, but, its not perfect.
Chrome:

The Issue is, that the browser doesnt accept my alignment settings of the three elements.
on top a svg-line
in the middle a png with transparent bg
below a svg-triangle.

I want the two svg to be aligned at the bottom.

What I got, after I made all settings and it looked all perfect in all devices in the preview of webflow.
The reality after publishing looked like this…

What can I do?
How should I set up the divs?
Should I use absolut/relative?

Thanks, mates.