css - How to overwrite angular 2 material styles?

Question

I have this select in angular material:

Its code :

<md-select placeholder="Descuentos y convenios" [(ngModel)]="passenger.discount">
        <md-option [value]="null" [disabled]="true">
            Descuentos
        </md-option>
        <md-option *ngFor="let option of discounts" [value]="option">
            {{ option }}
        </md-option>
        <md-option [value]="null" [disabled]="true">
            Convenios
        </md-option>
        <md-option *ngFor="let option of agreements" [value]="option">
            {{ option }}
        </md-option>
</md-select>

And I would like to have this styles in it:

I tried to put some classes over md-select and md-option, but not worked. I would like to have maybe just an example of how to put the background color or the border and that would give me an idea.

Thank you in advance

Answer 1

I think classes should work, but you may need to use /deep/ because of the view encapsulation.

Try this:

/deep/ md-select.your-class {
  background-color: blue;
}

You can also play with theming.