Styling the mat-select Panel in Angular Material
Issue
When customizing the mat-select component's panel using panelClass, CSS styles fail to apply despite proper class assignment in the HTML template.
Solution
For Angular 9 and later versions:
<code class="css">.mat-select-panel {
background: red;
....
}</code>
For Angular 2.0.0-beta.12 and earlier versions, there are several options to style the panel:
Option 1: Using ::ng-deep
This method utilizes the ::ng-deep combinator to penetrate the component's view encapsulation:
<code class="css">::ng-deep .mat-select-content{
width:2000px;
background-color: red;
font-size: 10px;
}</code>
Option 2: Using ViewEncapsulation
By setting the encapsulation mode to None in the component metadata, CSS styles are no longer encapsulated within the component's view:
<code class="typescript">import {ViewEncapsulation } from '@angular/core';
@Component({
....
encapsulation: ViewEncapsulation.None
}) </code>
Option 3: Set class style in style.css
Apply styles directly to the .mat-select-content class in the external style.css file, using !important to force application:
<code class="css"> .mat-select-content{
width:2000px !important;
background-color: red !important;
font-size: 10px !important;
} </code>
Option 4: Using inline style
Define inline styles directly within the HTML template:
<code class="html"><mat-option style="width:2000px; background-color: red; font-size: 10px;" ...></code>
The above is the detailed content of How to Style the Angular Material mat-select Panel?. For more information, please follow other related articles on the PHP Chinese website!
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