Angular Material tab height

According to Angular docs: you need to set the dynamicHeight input to true <mat-tab-group dynamicHeight>

By default, the tab group will not change its height to the height of the currently active tab. To change this, set the dynamicHeight input to true. The tab body will animate its height according to the height of the active tab.

In order to fill the page, the page needs to fill the window:

styles.css

body, html{
  height: 100%;
  margin: 0;
}

The app component needs to fill the body:

app.component.css

:host{
  box-sizing: border-box;
  display: block;
  height: 100%;
}

By default the wrappers of the content within the tabs are not filling the tab's height so we will fix this:

styles.css

.mat-tab-body-wrapper{
  flex-grow: 1;
}

We also need to have the mat-tab-group fill the height, its parent needs to fill the height too, so we will give an id to both the wrapper and the tab-group.

app.component.html

<div id="wrapper"> <!-- give it an id -->
    <div fxLayout="row" fxLayoutGap="16px" fxFill>
        <div fxFlex="20">
            <p>Fun Sidebar</p>
        </div>
        <div fxFlex="80" fxFill>
            <mat-tab-group id="tab-group"> <!-- give it an id -->
                <mat-tab label="Summary">
                    <div fxFlex style="padding: 16px;">
                        <div class="mat-display-2">Hello</div>
                        <p>Lorem ipsulem</p>
                    </div>
                </mat-tab>
                <mat-tab label="Tall content">
                    <app-tall-component></app-tall-component>
                </mat-tab>
            </mat-tab-group>
        </div>
    </div>
</div>

app.component.css

#wrapper{
  padding: 16px; 
  min-height: 100%; 
  height: 100%; 
  box-sizing: border-box;/*new*/
}
#tab-group{
  height: 100%;
}
#tab-group mat-tab-body {
  flex-grow: 1;
}

---

https://stackblitz.com/edit/angular-awamwn?file=src%2Fapp%2Fapp.component.html

This is worked for me to assign dynamic value for height.

:host ::ng-deep .mat-tab-body-wrapper {
  height: 600px;

}

:host ::ng-deep .mat-tab-body.mat-tab-body-active {
  height: 600px;

}