Expansion-panel from material angular 4

Question

I hava an angular 4.4.4 application with material 2.0.0-beta.12 and I want to use the mat-expansion-panel from material design.

This is my code

Answer 1

This code below will work when added to your components css file

:host {
  ::ng-deep {
    .mat-expansion-panel-spacing {
      margin: 0px 0 !important;
    }
  }
}