Angular Material mat-expansion-panel-body style not being applied

I have the following css in my component's css file:

.mat-expansion-panel-body {
  padding: 0;
}

And, so I would expect to see this rule (even if overridden) to show up for the following dom element:

<div class="mat-expansion-panel-body">...</div>

But, all I see being applied in dev tools is:

.mat-expansion-panel-body {
  padding: 0 24px 16px;
}

I noticed that this element does not have the _ngcontent-c19 class that the other host elements do, and so I assume this is a case of view encapsulation.

However, after reading around with the deprecation of ::ng-deep and /deep/ and other encapsulation piercing constructs to be deprecated, what is a better solution to styling this element from within my component's css file?

from Angular Material mat-expansion-panel-body style not being applied