What Are Templated Components? : One or more UI templates as a component parameter of type RenderFragment or RenderFragment<T>. A RenderFragment represents a chunk of UI to render. RenderFragment Parameter: RenderFragment parameters render the chunk of UI in a component. RenderFragment type parameter name must match with Html tag element. Pages/Card.razor(Html Portion): <h3>Card</h3> <div class="card text-center"> @CardHeader @CardBody @CardFooter </div> Pages/Card.razor(@code Portion): @code { [Parameter] public RenderFragment CardHeader { get; set; } [Parameter] public RenderFragment CardBody { get; set; } [Parameter] public RenderFragment CardFooter { get; set; } } @CardHeader, @CardBody @CardFooter are Templated Component parameters of type RenderFragment. Pages/Index.razor: <Card> <CardHeader> <div class="card-header"> My Templa