The library

Techniques, not templates

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

01 / 15

Two-Handle Price Filter From Real Inputs

Every shop has a two-handle price filter and no HTML element does it, so people reach for a slider library or fake the whole thing with divs — and throw away keyboard support on the way. Stack two real range inputs on one track instead. pointer-events: none lets a click fall straight through the invisible tracks, pointer-events: auto on the thumbs keeps each one grabbable, and that pair is the entire trick: arrow keys, Home/End, Tab focus and aria all still work. One fill div reads both values, each input clamps against the other so the handles cannot cross, and the higher one sits on top or its thumb goes unreachable at the far end.

cssaccessibilityui/uxformsjavascriptrange

02 / 15

Composer That Opens on :focus-within

The toolbar and submit button stay out of the way until the field they belong to is actually in use. :focus-within matches an element while focus sits anywhere inside it, so the wrapper can expand its own actions row the moment the textarea takes focus — collapsing max-height and opacity, no state to track.

cssrevealtextareaformsinteraction:focus-within

03 / 15

Cards That Restyle Themselves with :has()

A parent cannot normally react to its own children, which is why this pattern used to need JavaScript. :has() turns the relationship around: label:has(:checked) styles the whole card from the state of the input inside it. One selector, no classes to toggle, no listeners — CSS reading its own subtree like an if-statement.

cssformsinteraction:hascheckboxselectors

04 / 15

Button Loading & Success State Transitions

This button animates through three states: an initial state with text, a loading state where it shrinks into a spinner, and a success state where it turns green and reveals a self-drawing checkmark. This provides instant and trustworthy feedback to the user.

animationcsstransitionsformsbuttonfeedback

05 / 15

Pure CSS Floating Label

An input field with a label that initially acts as the placeholder. When the field is focused or text is entered, the label smoothly floats up and shrinks, providing persistent context without JavaScript.

animationuxcssaccessibilityformstransition

06 / 15

Animated SVG Checkbox

A custom-styled checkbox featuring an SVG checkmark that draws itself with a smooth stroke animation. It supports unchecked, checked, and indeterminate states while maintaining native accessibility.

animationcssaccessibilityformscheckboxsvg

07 / 15

Sliding Segmented Control with CSS Transform

A UI component with 'Day/Week/Month' tabs where an interactive pill slides smoothly behind the selected option, implemented using only CSS transform transitions driven by hidden radio inputs.

animationcssaccessibilityformssegmented-controlradios

08 / 15

Brand Native Form Controls with accent-color

This snippet demonstrates the `accent-color` CSS property, which allows you to easily brand the active and filled states of native form controls like checkboxes, radio buttons, range sliders, and progress bars with a single line of CSS. It provides simple, accessible styling without needing complex custom overrides or JavaScript.

cssaccessibilityformsstylingbrandingnative

09 / 15

User-Aware Form Validation Styling

This UI trick demonstrates how to use CSS `:user-invalid` and `:user-valid` pseudo-classes to provide polite form validation. Error or success states are only shown after a user interacts with an input field and blurs it, preventing accusatory messages on page load for empty, required fields.

animationuxcssformsvalidationpseudo-class

10 / 15

Fully Stylable Custom Dropdown

This snippet recreates the visual effect of a fully-themed dropdown, including options and checkmarks, as demonstrated in the video's '2025' segment. While the video highlights future native CSS styling with `appearance: base-select`, this demo achieves the desired look and feel using custom HTML, CSS, and JavaScript due to current browser limitations.

cssaccessibilityformsselectjavascriptdropdowncustom-component

11 / 15

Auto-growing Textarea with field-sizing

A textarea that automatically expands and contracts its height to fit its content as the user types, without needing any JavaScript. It uses the modern `field-sizing: content` CSS property, paired with `min-height` and `max-height` for sane bounds.

cssresponsiveauto-sizingtextareainputforms

12 / 15

CSS Custom Radio Buttons

Custom styled radio buttons created by resetting native appearance and animating border thickness on the `:checked` state with pure CSS.

animationcssformstransitioninputsradio buttons