@oddbird/css-anchor-positioning
Advanced tools
To use the polyfill, add this script tag to your document <head>:
<script type="module">
if (!("anchorName" in document.documentElement.style)) {
import("https://unpkg.com/@oddbird/css-anchor-positioning");
}
</script>
You can view a more complete demo here.
The polyfill accepts one argument (type: boolean, default: false), which
determines whether anchor calculations should update on every animation
frame (e.g. when the
anchor element moves), in addition to always updating on scroll/resize. While
this option is optimized for performance, it should be used sparingly.
<script type="module">
if (!("anchorName" in document.documentElement.style)) {
const { default: polyfill } = await import("https://unpkg.com/@oddbird/css-anchor-positioning/dist/css-anchor-positioning-fn.js");
polyfill(true);
}
</script>
When using the default version of the polyfill that executes automatically, this
option can be set by setting the value of
window.UPDATE_ANCHOR_ON_ANIMATION_FRAME.
<script type="module">
if (!("anchorName" in document.documentElement.style)) {
window.UPDATE_ANCHOR_ON_ANIMATION_FRAME = true;
import("https://unpkg.com/@oddbird/css-anchor-positioning");
}
</script>
This polyfill doesn't (yet) support the following:
anchor-default propertyanchor-scroll propertyimplicit anchor-elementauto or auto-same
anchor-sideinset-* properties or inset shorthand
propertygrid-column/grid-row/grid-area in a
CSS Grid layout@position-fallback where targets in a CSS Grid layout overflow the grid area
but do not overflow the containing block@position-fallback where targets overflow their inset-modified containing
block, overlapping the anchor elementbottom or right properties on inline targets
whose offset-parent is inline with clientHeight/clientWidth of 0
(partial support -- does not account for possible scrollbar width)FAQs
Polyfill for the proposed CSS anchor positioning spec
The npm package @oddbird/css-anchor-positioning receives a total of 1,819 weekly downloads. As such, @oddbird/css-anchor-positioning popularity was classified as popular.
We found that @oddbird/css-anchor-positioning demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Research
Socket researchers have discovered malicious npm packages targeting crypto developers, stealing credentials and wallet data using spyware delivered through typosquats of popular cryptographic libraries.
Security News
Socket's package search now displays weekly downloads for npm packages, helping developers quickly assess popularity and make more informed decisions.
Security News
A Stanford study reveals 9.5% of engineers contribute almost nothing, costing tech $90B annually, with remote work fueling the rise of "ghost engineers."