Flat Design Icon Animation for Vertical Screen Adjustment

This animated flat design icon visually represents the concept of adjusting a vertical screen or frame's aspect ratio. A light green rectangular shape, outlined with a solid dark red line, depicts a screen. A dashed outline dynamically expands and contracts along the left edge, while three horizontal lines to the right pulse subtly, indicating options or settings. The animation is clean, minimalist, and uses a limited color palette against a white background, making it ideal for tutorials, user interface demonstrations, or explainer videos focused on responsive design, display settings, or content layout adaptation.