Blitz - WPT: auto-margins-position-area.html

wpt / css / css-anchor-position / auto-margins-position-area.html

/css/css-anchor-position/auto-margins-position-area.html

<!DOCTYPE html>
<title>CSS Anchor Positioning: position-area vs margins</title>
<link rel="help" href="https://drafts.csswg.org/css-anchor-position/#position-area">
<link rel="help" href="https://www.w3.org/TR/css-anchor-position/#anchor-center">

<link rel="match" href="auto-margins-position-area-ref.html">

<style>
  .container {
    position: absolute;
    width: 400px;
    height: 400px;
    margin: 0 auto;
    border: 2px solid;
  }
  .anchor {
    margin-top: 100px;
    margin-left: 100px;
    width: 150px;
    height: 75px;
    anchor-name: --anchor;
    border: solid 1px;
  }

  .anchored {
    position: absolute;
    position-anchor: --anchor;
    inset: 0;
    width: 20px;
    height: 20px;
    border: solid 1px;
    opacity: 30%;
    margin: auto 0 0 auto;
  }
</style>
<div class="container">
  <div class="anchored" style="background: silver"></div>
  <div class="anchored" style="position-area: span-all; background: maroon"></div>
  <div class="anchored" style="position-area: top center; background: orange"></div>
  <div class="anchored" style="position-area: left center; background: yellow"></div>
  <div class="anchored" style="position-area: bottom right; background: lime"></div>
  <div class="anchored" style="position-area: span-right; background: green"></div>
  <div class="anchored" style="position-area: span-bottom; background: teal"></div>
  <div class="anchored" style="position-area: right; background: blue"></div>
  <div class="anchored" style="position-area: bottom; background: purple"></div>
  <div class="anchored" style="align-self: anchor-center; background: fuchsia"></div>
  <div class="anchored" style="justify-self: anchor-center; background: aqua"></div>
  <div class="anchor"></div>
</div>

/css/css-anchor-position/auto-margins-position-area-ref.html

<!DOCTYPE html>
<title>CSS Anchor Positioning: position-area vs margins</title>
<style>
  .container {
    position: absolute;
    width: 400px;
    height: 400px;
    margin: 0 auto;
    border: 2px solid;
  }
  .anchor {
    margin-top: 100px;
    margin-left: 100px;
    width: 150px;
    height: 75px;
    anchor-name: --anchor;
    border: solid 1px;
  }

  .anchored {
    position: absolute;
    position-anchor: --anchor;
    width: 20px;
    height: 20px;
    border: solid 1px;
    opacity: 30%;
    margin: 0;
  }
</style>
<div class="container">
  <div class="anchored" style="background: silver; inset: auto 0 0 auto;"></div>
  <div class="anchored" style="position-area: span-all; background: maroon"></div>
  <div class="anchored" style="position-area: top center; background: orange"></div>
  <div class="anchored" style="position-area: left center; background: yellow"></div>
  <div class="anchored" style="position-area: bottom right; background: lime"></div>
  <div class="anchored" style="position-area: span-right; background: green"></div>
  <div class="anchored" style="position-area: span-bottom; background: teal"></div>
  <div class="anchored" style="position-area: right; background: blue"></div>
  <div class="anchored" style="position-area: bottom; background: purple"></div>
  <div class="anchored" style="align-self: anchor-center; background: fuchsia; right: 0"></div>
  <div class="anchored" style="justify-self: anchor-center; background: aqua; bottom: 0"></div>
  <div class="anchor"></div>
</div>