Mat-select panel min-width

Question

I\'m trying to customize mat-select with multiple checkboxes. for some reason the panel get wrong min-width as below:

and I don\'t know where its calculating t

Answer 1

I used another approach. Just added this piece of code to global style.

.mat-select-panel {
// some your code
  &.ng-animating {
       visibility: hidden;
    }
  }

You can try this solution on DEMO StackBlitz.
Hack with opacity did not fix jumping width when select is closing.