A slide-out panel demonstrates Angular's dynamic class binding for a directive-less page slide. The example uses an HTML div with the classes `ng-pageslide` and `ng-pageslide-left`, toggling an `open` class via `ng-class` based on the `panels.state` variable. The accompanying CSS defines smooth transitions for width and height properties, expanding the panel to 350px wide from the left edge over 0.5 seconds. The code relies on Angular's built-in `ng-class` directive and CSS3 transitions, with the content inside the panel becoming visible only when the `open` class is applied.