Angular 2 material mat-tab size

I have the following piece of code

  <mat-tab-group>
    <div *ngFor="let question of subcategory.questions">
        <mat-tab label={{question.question_id}} class="question-tab">{{question.question}}</mat-tab>
    </div>
  </mat-tab-group>

which displays like:

However I want to reduce tabs width, like this:

The problem is, when I change css at run time, it adjusts fine, but when I put css like:

.mat-tab {
  min-width: 50px !important;
}
.mat-tab-label[_ngcontent-c9]{
    min-width: 50px !important;
}

It doesn't work. Any idea how to approach this ?

Try this:

/deep/.mat-tab-label, /deep/.mat-tab-label-active{
 min-width: 0!important;
 padding: 3px!important;
 margin: 3px!important;
}

NOTE: In angular 8 /deep/ not working... you can use ::ng-deep, like so:

::ng-deep.mat-tab-label, ::ng-deep.mat-tab-label-active{
 min-width: 0!important;
 padding: 3px!important;
 margin: 3px!important;
}