Angular style not applied to component

Question

The following code renders the horizontal scrollbar as expected in the browser:

my-component.html

<!-- Test Modal -->
<div class="modal fade modalsize" data-backdrop="false" id="testModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalCenterTitle" aria-hidden="true">
  <div class="modal-dialog modal-dialog-centered modal-lg" role="document">
    <div class="modal-content">
      <div class="modal-body">
        <h4>Test</h4>
        <div id="wrapper">
        <table>
          <tr>
            <th>Company</th><th>Company</th><th>Company</th><th>Company</th><th>Company</th><th>Company</th><th>Company</th>
            <th>Company</th><th>Company</th><th>Company</th><th>Company</th><th>Company</th><th>Company</th><th>Company</th>
          </tr>
        </table>
       </div>
      </div>
    </div>
  </div>
</div>

my-component.css

#wrapper {
  overflow-x: scroll;
}

However, when I try to use another component inside the modal, the styles aren't applied / scrollbar doesn't render:

my-component.html

<div class="modal fade modalsize" data-backdrop="false" id="testModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalCenterTitle" aria-hidden="true">
  <div class="modal-dialog modal-dialog-centered modal-lg" role="document">
    <div class="modal-content">
      <div class="modal-body">
        <my-second-component (valueSelected)='selectValue($event)'></my-second-component>
      </div>
    </div>
  </div>
</div>

my-second-component.html

<div id="mywrapper">
  <table>
    <tr>
      <th>Component</th><th>Component</th><th>Component</th><th>Component</th><th>Component</th><th>Component</th><th>Component</th>
      <th>Component</th><th>Component</th><th>Component</th><th>Component</th><th>Component</th><th>Component</th><th>Component</th>
    </tr>
  </table>
</div>

my-second-component.css

#mywrapper {
    overflow-x: scroll;
}

Update @Mohamed.Karkotly figured it out - my-second-component.ts was missing the style URL for the component css:

@Component({
  selector: 'my-second-component',
  templateUrl: './my-second-component.component.html',
  styleUrls: ['./my-second-component.component.css'] <-- This was missing
})

Answer 1

For anyone that might face this problem in the future, this might be due to a missing styleUrls array within @Component decorator of the component.

@Component({
  selector: 'my-second-component',
  templateUrl: './my-second-component.component.html',
  styleUrls: ['./my-second-component.component.css'] <-- This was missing
})

Answer 2

You can try to make use of the View Encapsulation options too.

https://angular.io/api/core/ViewEncapsulation

@Component({
  selector: 'app-root',
  encapsulation: ViewEncapsulation.ShadowDom // <-- ShadowDom , None or Emulated
})
class MyApp {
}