# hakimel/Avgrund

A JS/CSS3 modal UI concept

Repository: https://github.com/hakimel/Avgrund
Canonical: https://ross.abutalabs.com/products/avgrund
Language: HTML
License: MIT
License Family: permissive
Last push: 2019-02-19T20:01:40+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 5128, "days_push": 2752, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1658, forks 301 (observed 2026-08-28T04:05:18.196109+00:00)

## What it is
Avgrund is a small JavaScript/CSS3 library that implements modal dialogs with a depth effect, making the page appear to recede behind the modal layer. It is a lightweight UI concept by Hakim El Hattab, released under the MIT license.

## Use cases
- show a modal dialog with a depth animation
- make the background page scale back when a popup opens
- add a polished modal layer to a plain HTML page
- create a lightweight modal without a big UI framework
- implement a CSS3-based popup concept

## When to choose
- you want a simple, dependency-free modal with a distinctive depth effect
- you are building a small static page and only need modal dialogs
- you want to study or fork a CSS3 modal animation concept

## When to avoid
- you need an actively maintained library with ongoing bug fixes
- you need accessible, feature-rich modals (focus trapping, ARIA, stacking)
- your project already uses a UI framework with built-in modal components

## Facets
- artifact type: library
- maturity: abandoned
- function: ui-components, animation
- domain: frontend, web-development, web-design
- platform: browser, cross-platform
- tags: modal, css3, depth-effect, popup, ui-concept

## Member repositories
- hakimel/Avgrund (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:18.196109+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:44:44.619109+00:00, confidence not recorded.
  - readme: https://github.com/hakimel/Avgrund (fetched 2026-08-28T04:05:18.196109+00:00, sha 632a408043e7)
- Data as of 2026-08-30T08:39:29.467469+00:00.