Angular Material Table Cell :after element

Question

I have no idea what this is or how more importantly how to access it.
I am hoping someone has come by this problem before.

Scenario :

I am working on making a responsive table and it seems like there is a "Phantom Cell" at the end

Answer 1

Found the selector

  mat-footer-row::after, mat-header-row::after, mat-row::after {
    min-height: 0;
  }

Answer 2

mat-footer-row::after, mat-header-row::after, mat-row::after {
    display: block !important;
    min-height: 0!important;
  }