Answers for "make mat tool"

sticky mat-toolbar

.app-toolbar {
    position: sticky;
    position: -webkit-sticky; /* For macOS/iOS Safari */
    top: 0; /* Sets the sticky toolbar to be on top */
    z-index: 1000; /* Ensure that your app's content doesn't overlap the toolbar */
}

mat-toolbar

<mat-toolbar-row>
  <span>Second Line</span>
  <span class="example-spacer"></span>
  <mat-icon class="example-icon" aria-hidden="false" aria-label="Example user verified icon">verified_user</mat-icon>
</mat-toolbar-row>