What is the best way to apply styling exclusively to a child component?

I am currently working on a coding project that involves a parent component and multiple child components. My main goal is to adjust the position of a filter icon by moving it down 5 pixels on one specific child component. The issue I am facing is that no matter what CSS code I input into the child component, it does not seem to have any effect. If I try adding the following CSS code snippet into the parent component, it successfully modifies the child component as intended, but unfortunately also impacts other components in the process:

:host /deep/ svg-icon.filterIcon {
  height: 22px !important;
  padding-top: 5px !important;
}

When attempting to use this same code within the child component I want to style, it doesn't produce any changes. Likewise, using the following CSS code results in no visible adjustments either:

svg-icon.filterIcon {
  height: 22px !important;
  padding-top: 5px !important;
}

My question now is, how can I apply styling specifically to this one child component without affecting the others?

cssangular

Answer №1

Consider utilizing the ViewEncapsulation feature in the child component code:

import {ViewEncapsulation} from '@angular/core'; // This import is necessary

@Component({
   moduleId: id,
   selector: 'my-child',
   templateUrl: 'my-child.component.html',
   styles: [`
     .your_custom_class {
        background: blue;
      }
   `],
   encapsulation: ViewEncapsulation.None  // Ensure this line is included
 })

 class ChildComponent {
    @Input() some_info: string;
 }

Answer №2

Successfully referencing the child component within the parent component's CSS using the following code:

 :host /deep/ app-milestones-summary svg-icon.filterIcon {
  height: 22px !important;
  padding-top: 5px !important;
}

I'm still unsure about directly styling the child component, but at least I discovered a solution that works.

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