style mat dialog container

1// Overlay-based components have a panelClass property (or similar) 
2// that can be used to target the overlay pane.
3
4this.dialog.open(DialogExampleComponent, { 
5	panelClass: 'dialog-container-custom' 
6});
7
8// then style it from there
9
10.dialog-container-custom .mat-dialog-container {
11	padding: 0;
12	background: grey;
13}