Angular – Change size of mat-icon-button

angularangular-material

How can I change mat-icon-button size? My icon has 24px now and I would like to increase that value to 48px. I use mat-icon as a button content. I also noticed that mat-icon-button has just hardcoded 40px/40px size.

<button mat-icon-button color="primary">
    <mat-icon class="material-icons">play_circle_filled</mat-icon>
</button>

Best Answer

Override the font size of mat-icon using either of the options. (I changed md- to mat- for the newest AM version)

For Angular Material 8+, add the following in the components stylesheet: 
.mat-icon{
    height:48px !important;
    width:48px !important;
    font-size:48px !important;
}

Demo

For previous versions, add ::ng-deep to reach that class deep in the host. The width and the height should be also set to adjust the backdrop size proportionally.

HTML:

<button mat-button>    
  <mat-icon class="material-icons">play_circle_filled</mat-icon>
</button>

CSS

::ng-deep .mat-icon{
    height:48px !important;
    width:48px !important;
    font-size:48px !important;
}

Check out the Demo

Or, if you avoid `::ng-deep`, use `ViewEncapsulation.None` (but use sparingly):

Class:

import {ViewEncapsulation} from '@angular/core';

@Component({
  encapsulation: ViewEncapsulation.None
})

Then you can style directly from the component stylesheet.

CSS:

.mat-icon{
    height:48px !important;
    width:48px !important;
    font-size:48px !important;
}

Demo

Or style it from the main stylesheet, styles.css:

styles.css

.mat-icon{
    height:48px !important;
    width:48px !important;
    font-size:48px !important;
}

Demo

And last, but not the least solution, styling can be done inline:

HTML:

<button mat-button>    
  <mat-icon style="
    height:48px !important;
    width:48px !important;
    font-size:48px !important;" class="material-icons">play_circle_filled</mat-icon>
</button>

Demo

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