Imperator Design
The library

Techniques, not templates

Every trick recreated from the source video as a live, self-contained demo. Search, filter, open, steal.

1 / 9

CSS Color Picker Gradients

This demo illustrates how a color picker's saturation/brightness square and hue strip can be constructed using layered CSS gradients. Drag the circular selectors to change the hue, saturation, and brightness, seeing the resulting color instantly.

csscolorgradientsuijavascriptinteractivity
2 / 9

CSS Grid FR Accordion

Animate accordion panels smoothly to any content height using CSS Grid's `fr` unit. This technique avoids fixed `max-height` values or JavaScript height measurements, providing a fluid and adaptable expansion.

animationcssgriduiaccordioninteraction
3 / 9

Squircle Corner Shape Comparison

Compares standard CSS `border-radius` with the smoother 'squircle' (superellipse) corner shape, often seen in Apple's UI. This effect utilizes the experimental `corner-shape` CSS property for a more continuous curve.

cssuicornerssuperellipseshapes
4 / 9

Pure CSS Toast Notification

A self-dismissing toast notification that slides in, remains visible for a set duration, and then slides out, all powered purely by CSS animations without JavaScript.

animationcssuikeyframestoastnotification
5 / 9

Animated Toast Notification

A non-blocking, animated toast notification that slides in from the bottom right, provides success feedback, and auto-dismisses after a short period, with an option to close manually.

animationuijavascriptfeedbacktoastnotification
6 / 9

Autocomplete Combobox with Filtering & Keyboard Navigation

An interactive combobox that filters suggestions in real-time as you type, highlights matched text within the results, and allows selection via arrow keys and Enter, or a direct mouse click.

inputuijavascriptkeyboard navigationfilteringautocompletecombobox
7 / 9

Animated Delete Confirmation Modal

A modal dialog with a backdrop that animates between a confirmation state (delete project) and a success state (project deleted) with distinct icon and content transitions. The modal itself subtly changes size during the state transition.

animationuitransitiondialogmodalconfirmation
8 / 9

3D App Unfold Transition

An application UI that appears to unfold like paper, expanding its width and revealing content with a smooth 3D rotation and expansion effect.

animationlayoutui3dtransitiontransform
9 / 9

Blueprint UI Drawing Animation

Recreates a "blueprint" style effect where UI components, their dimensions, and labels are animated as if being drawn by a CAD plotter, using SVG path animations and timed content reveals.

animationcssuisvgfrontenddrawingblueprint