position-absolute-replaced-minmax.html

<!DOCTYPE html>

<title>CSS Position: absolute position, replaced elements, and minmax</title>

<link rel="author" title="mailto:atotic@google.com">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<link rel="help" href="https://www.w3.org/TR/CSS2/visudet.html#min-max-widths">

<meta name="assert" content="Min/max width and height interact properly with abspos replaced elements">

<style>

.container {

  position: relative;

  display: inline-block;

  width: 400px;

  height: 200px;

  border: 1px solid black;

.target {

  position: absolute;

  padding: 10px;

  bottom: 0;

  right: 0;

  border-width: 3px 7px 9px 11px;

  border-color: yellow;

  border-style: solid;

  margin: 1px 3px 7px 9px;

</style>

<!-- test all combinations of minmax from section 10.4 table at

  https://www.w3.org/TR/CSS2/visudet.html#min-max-widths -->

<!-- IFRAME tests -->

<!-- iframe: intrinsic size is 300x150, no aspect ratio -->

<div class="container">

  <iframe class="target"

  data-expected-width="338" data-expected-height="182" data-offset-y="11" data-offset-x="59"

  </iframe>

</div>

<!-- spec 1: w > max-width -->

<div class="container">

  <iframe class="target" style="max-width:100px"

  data-expected-width="138" data-expected-height="182" data-offset-y="11" data-offset-x="259"

  </iframe>

</div>

<!-- spec 2: w < min-width -->

<div class="container">

  <iframe class="target" style="min-width: 350px"

  data-expected-width="388" data-expected-height="182" data-offset-y="11" data-offset-x="9"

  </iframe>

</div>

<!-- spec 3: h > max-height -->

<div class="container">

  <iframe class="target" style="max-height: 150px"

  data-expected-width="338" data-expected-height="182" data-offset-y="11" data-offset-x="59"

  </iframe>

</div>

<!-- spec 4: h < min-height -->

<div class="container">

  <iframe class="target" style="min-height: 165px"

  data-expected-width="338" data-expected-height="197" data-offset-y="-4" data-offset-x="59"

  </iframe>

</div>

<!-- spec 5: (w > max-width) and (h > max-height), where (max-width/w ≤ max-height/h) -->

<div class="container">

  <iframe class="target" style="max-width: 240px; max-height: 135px"

  data-expected-width="278" data-expected-height="167" data-offset-y="26" data-offset-x="119"

  </iframe>

</div>

<!-- spec 6: (w > max-width) and (h > max-height), where (max-width/w > max-height/h) -->

<div class="container">

  <iframe class="target" style="max-width: 270px; max-height: 120px"

  data-expected-width="308" data-expected-height="152" data-offset-y="41" data-offset-x="89"

  </iframe>

</div>

<!-- spec 7: (w < min-width) and (h < min-height), where (min-width/w ≤ min-height/h) -->

<div class="container">

  <iframe class="target" style="min-width: 360px; min-height: 165px"

  data-expected-width="398" data-expected-height="197" data-offset-y="-4" data-offset-x="-1"

  </iframe>

</div>

<!-- spec 8: (w < min-width) and (h < min-height), where (min-width/w > min-height/h) -->

<div class="container">

  <iframe class="target" style="min-width: 330px; min-height: 180px"

  data-expected-width="368" data-expected-height="212" data-offset-y="-19" data-offset-x="29"

  </iframe>

</div>

<!-- spec 9: (w < min-width) and (h > max-height) -->

<div class="container">

  <iframe class="target" style="min-width: 330px; max-height: 135px"

  data-expected-width="368" data-expected-height="167" data-offset-y="26" data-offset-x="29"

  </iframe>

</div>

<!-- spec 10: (w > max-width) and (h < min-height) -->

<div class="container">

  <iframe class="target" style="max-width: 240px; min-height: 165px"

  data-expected-width="278" data-expected-height="197" data-offset-y="-4" data-offset-x="119"

  </iframe>

</div>

<!-- IMG png tests -->

<!-- image dimensions: 200x150. images has intrinic size and aspect ratio -->

<div class="container">

  <img class="target png"

  data-expected-width="238" data-expected-height="182" data-offset-y="11" data-offset-x="159"

</div>

<!-- spec 1: w > max-width -->

<div class="container">

  <img class="target png" style="max-width: 180px"

  data-expected-width="218" data-expected-height="167" data-offset-y="26" data-offset-x="179"

</div>

<!-- spec 2: w < min-width -->

<div class="container">

  <img class="target png" style="min-width: 220px"

  data-expected-width="258" data-expected-height="197" data-offset-y="-4" data-offset-x="139"

</div>

<!-- spec 3: h > max-height -->

<div class="container">

  <img class="target png" style="max-height: 135px"

  data-expected-width="218" data-expected-height="167" data-offset-y="26" data-offset-x="179"

</div>

<!-- spec 4: h < min-height -->

<div class="container">

  <img class="target png" style="min-height: 165px"

  data-expected-width="258" data-expected-height="197" data-offset-y="-4" data-offset-x="139"

</div>

<!-- spec 5: (w > max-width) and (h > max-height), where (max-width/w ≤ max-height/h) -->

<div class="container">

  <img class="target png" style="max-width: 160px; max-height: 135px"

  data-expected-width="198" data-expected-height="152" data-offset-y="41" data-offset-x="199"

</div>

<!-- spec 6: (w > max-width) and (h > max-height), where (max-width/w > max-height/h) -->

<div class="container">

  <img class="target png" style="max-width: 180px; max-height: 120px"

  data-expected-width="198" data-expected-height="152" data-offset-y="41" data-offset-x="199"

</div>

<!-- spec 7: (w < min-width) and (h < min-height), where (min-width/w ≤ min-height/h) -->

<div class="container">

  <img class="target png" style="min-width: 240px;min-height: 165px"

  data-expected-width="278" data-expected-height="212" data-offset-y="-19" data-offset-x="119"

</div>

<!-- spec 8: (w < min-width) and (h < min-height), where (min-width/w > min-height/h) -->

<div class="container">

  <img class="target png" style="min-width: 220px;min-height: 180px"

  data-expected-width="278" data-expected-height="212" data-offset-y="-19" data-offset-x="119"

</div>

<!-- spec 9: (w < min-width) and (h > max-height) -->

<div class="container">

  <img class="target png" style="min-width: 220px; max-height: 130px"

  data-expected-width="258" data-expected-height="162" data-offset-y="31" data-offset-x="139"

</div>

<!-- spec 10: (w > max-width) and (h < min-height) -->

<div class="container">

  <img class="target png" style="max-width: 180px; min-height: 165px"

  data-expected-width="218" data-expected-height="197" data-offset-y="-4" data-offset-x="179"

</div>

<!-- IMG SVG tests -->

<!-- image dimensions: 200x150. images has no intrinic size and no aspect ratio -->

<div class="container">

  <img class="target svg"

  data-expected-width="338" data-expected-height="182" data-offset-y="11" data-offset-x="59"

</div>

<!-- spec 1: w > max-width -->

<div class="container">

  <img class="target svg" style="max-width: 180px"

  data-expected-width="218" data-expected-height="182" data-offset-y="11" data-offset-x="179"

</div>

<!-- spec 2: w < min-width -->

<div class="container">

  <img class="target svg" style="min-width: 220px"

  data-expected-width="338" data-expected-height="182" data-offset-y="11" data-offset-x="59"

</div>

<!-- spec 3: h > max-height -->

<div class="container">

  <img class="target svg" style="max-height: 135px"

  data-expected-width="338" data-expected-height="167" data-offset-y="26" data-offset-x="59"

</div>

<!-- spec 4: h < min-height -->

<div class="container">

  <img class="target svg" style="min-height: 165px"

  data-expected-width="338" data-expected-height="197" data-offset-y="-4" data-offset-x="59"

</div>

<!-- spec 5: (w > max-width) and (h > max-height), where (max-width/w ≤ max-height/h) -->

<div class="container">

  <img class="target svg" style="max-width: 160px; max-height: 135px"

  data-expected-width="198" data-expected-height="167" data-offset-y="26" data-offset-x="199"

</div>

<!-- spec 6: (w > max-width) and (h > max-height), where (max-width/w > max-height/h) -->

<div class="container">

  <img class="target svg" style="max-width: 180px; max-height: 120px"

  data-expected-width="218" data-expected-height="152" data-offset-y="41" data-offset-x="179"

</div>

<!-- spec 7: (w < min-width) and (h < min-height), where (min-width/w ≤ min-height/h) -->

<div class="container">

  <img class="target svg" style="min-width: 240px;min-height: 165px"

  data-expected-width="338" data-expected-height="197" data-offset-y="-4" data-offset-x="59"

</div>

<!-- spec 8: (w < min-width) and (h < min-height), where (min-width/w > min-height/h) -->

<div class="container">

  <img class="target svg" style="min-width: 220px;min-height: 180px"

  data-expected-width="338" data-expected-height="212" data-offset-y="-19" data-offset-x="59"

</div>

<!-- spec 9: (w < min-width) and (h > max-height) -->

<div class="container">

  <img class="target svg" style="min-width: 220px; max-height: 130px"

  data-expected-width="338" data-expected-height="162" data-offset-y="31" data-offset-x="59"

</div>

<!-- spec 10: (w > max-width) and (h < min-height) -->

<div class="container">

  <img class="target svg" style="max-width: 180px; min-height: 165px"

  data-expected-width="218" data-expected-height="197" data-offset-y="-4" data-offset-x="179"

</div>

<!-- SVG tests -->

<!-- SVGs are special: any combination of intrinsic_size and aspect_ratio

  can happen. -->

<!-- Just viewbox. Has intrinsic aspect ratio, but no width/height -->

<div class="container">

  <img class="target" src="data:image/svg+xml,%3Csvg  xmlns='http://www.w3.org/2000/svg' %3E%3Crect width='100%' height='100%' style='fill:rgb(0,255,0);'/%3E%3C/svg%3E" style=""

  data-expected-width="338" data-expected-height="182" data-offset-y="11" data-offset-x="59"

</div>

<!-- Just viewbox. Has aspect_ratio, but no intrinsic size

 inline_width defaults to container width -->

<div class="container">

  <img class="target" src="data:image/svg+xml,%3Csvg viewBox='0 0 100 10' xmlns='http://www.w3.org/2000/svg' %3E%3Crect width='100%' height='100%' style='fill:rgb(0,255,0);'/%3E%3C/svg%3E"

  data-expected-width="388" data-expected-height="67" data-offset-y="126" data-offset-x="9"

</div>

<!-- Just viewbox. Has aspect_ratio, but no intrinsic size

 inline_width is constrained by left/right, height computed proportionally -->

<div class="container">

  <img class="target" style="left:100px;right:100px;" src="data:image/svg+xml,%3Csvg viewBox='0 0 100 10' xmlns='http://www.w3.org/2000/svg' %3E%3Crect width='100%' height='100%' style='fill:rgb(0,255,0);'/%3E%3C/svg%3E"

  data-expected-width="188" data-expected-height="47" data-offset-y="146" data-offset-x="109"

</div>

<!-- Same as previous test, but with max-width:fit-content. crbug.com/1010798

-->

<div class="container">

  <img class="target" style="left:100px;right:100px;max-width:fit-content" src="data:image/svg+xml,%3Csvg viewBox='0 0 100 10' xmlns='http://www.w3.org/2000/svg' %3E%3Crect width='100%' height='100%' style='fill:rgb(0,255,0);'/%3E%3C/svg%3E"

  data-expected-width="188" data-expected-height="47" data-offset-y="146" data-offset-x="109"

</div>

<!-- Viewbox + svg width. Has aspect_ratio and width. Height is scaled -->

<div class="container">

  <img class="target" src="data:image/svg+xml,%3Csvg viewBox='0 0 100 10' width='100px' xmlns='http://www.w3.org/2000/svg' %3E%3Crect width='100%' height='100%' style='fill:rgb(0,255,0);'/%3E%3C/svg%3E"

  data-expected-width="138" data-expected-height="42" data-offset-y="151" data-offset-x="259"

</div>

<!-- Viewbox + svg height. Has aspect_ratio and height. Width is scaled -->

<div class="container">

  <img class="target" src="data:image/svg+xml,%3Csvg viewBox='0 0 100 10' height='20px' xmlns='http://www.w3.org/2000/svg' %3E%3Crect width='100%' height='100%' style='fill:rgb(0,255,0);'/%3E%3C/svg%3E"

  data-expected-width="238" data-expected-height="52" data-offset-y="141" data-offset-x="159"

</div>

<!-- Viewbox + css height. Has aspect_ratio and height. Width is scaled -->

<div class="container">

  <img class="target" style="height:20px" src="data:image/svg+xml,%3Csvg viewBox='0 0 100 10' xmlns='http://www.w3.org/2000/svg' %3E%3Crect width='100%' height='100%' style='fill:rgb(0,255,0);'/%3E%3C/svg%3E"

  data-expected-width="238" data-expected-height="52" data-offset-y="141" data-offset-x="159"

</div>

<!-- Viewbox + css width. Has aspect_ratio and width. Height is scaled -->

<div class="container">

  <img class="target" style="width:238px" src="data:image/svg+xml,%3Csvg viewBox='0 0 100 10' xmlns='http://www.w3.org/2000/svg' %3E%3Crect width='100%' height='100%' style='fill:rgb(0,255,0);'/%3E%3C/svg%3E"

  data-expected-width="276" data-expected-height="56" data-offset-y="137" data-offset-x="121"

</div>

<script>

  // initialize png images with  200x150 green png

  let pngSrc="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAMgAAACWAQMAAAChElVaAAAABGdBTUEAALGPC/xhBQAAACBjSFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAABlBMVEUAgAD///8UPy9PAAAAAWJLR0QB/wIt3gAAAAd0SU1FB+MBDwkdA1Cz/EMAAAAbSURBVEjH7cGBAAAAAMOg+VPf4ARVAQAAAM8ADzwAAeM8wQsAAAAldEVYdGRhdGU6Y3JlYXRlADIwMTktMDEtMTVUMTc6Mjk6MDMtMDg6MDCYDy9IAAAAJXRFWHRkYXRlOm1vZGlmeQAyMDE5LTAxLTE1VDE3OjI5OjAzLTA4OjAw6VKX9AAAAABJRU5ErkJggg=="

  let images = document.querySelectorAll("img.png");

  for (let i=0; i<images.length; ++i) {

    images[i].src = pngSrc;

  // SVG with no intrinsic width/height

  let svgSrc="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' %3E%3Crect width='100%' height='100%' style='fill:rgb(0,255,0);'/%3E%3C/svg%3E ";

  images = document.querySelectorAll("img.svg");

  for (let i=0; i<images.length; ++i) {

    images[i].src = svgSrc;

  function makeTest(el) {

    return function() {

      if (!el.getAttribute("data-expected-width")) {

        // This code is used to generate reference data for the tests.

        let text = `data-expected-width="${el.offsetWidth}" data-expected-height="${el.offsetHeight}" data-offset-y="${el.offsetTop}" data-offset-x="${el.offsetLeft}"`;

        el.parentElement.innerText = text;

        return;

      assert_equals(el.offsetWidth + "", el.getAttribute("data-expected-width"), "incorrect offsetWidth");

      assert_equals(el.offsetHeight + "", el.getAttribute("data-expected-height"), "incorrect offsetHeight");

      assert_equals(el.offsetTop + "", el.getAttribute("data-offset-y"), "incorrect offsetTop");

      assert_equals(el.offsetLeft + "", el.getAttribute("data-offset-x"), "incorrect offsetLeft");

};

  let testNameIndex = 1;

  function getTestName(el) {

    let svg = el.classList.contains("svg") ? " svg" : "";

    return "minmax replaced " + el.nodeName + svg + " " + testNameIndex++;

};

  function testAfterImageLoads(img, test) {

    let asyncTest = async_test(getTestName(img));

    img.addEventListener("error", asyncTest.unreached_func("Load shouldn't fail"));

    img.addEventListener("load", _ => {

      asyncTest.step(test);

      asyncTest.done();

});

};

  let testElements = document.querySelectorAll(".target");

  for (let i=0; i<testElements.length; ++i) {

    let myTest = makeTest(testElements[i]);

    if (testElements[i].nodeName == "IMG" && !testElements[i].complete) {

      testAfterImageLoads(testElements[i], myTest);

    } else {

      test(myTest, getTestName(testElements[i]));

</script>

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