testing/web-platform/tests/css/css-position/position-absolute-semi-replaced-stretch-button.html


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<!DOCTYPE html>
<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/6789">
<link rel="match" href="position-absolute-semi-replaced-stretch-button-ref.html">
<title>Semi-replaced elements should stretch with an auto main size, and explicit insets in that direction.</title>
<style>
.cb {
  position: relative;
  border: 3px solid black;
  height: 100px;
  width: 150px;
  display: inline-block;
  vertical-align: top;
  margin: 5px;
}
.abs {
  margin: 0;
  position: absolute;
  box-sizing: border-box;
  top: 3px;
  right: 3px;
  bottom: 3px;
  left: 3px;
  outline: 2px solid lime;
  width: auto;
  height: auto;
}
</style>
<div class="cb"><button class="abs">button</button></div>