image-resize-percent-width.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<html class="reftest-wait">

<script>

function run() {

  var img = document.getElementsByTagName("img")[0];

  img.offsetWidth; // flush layout

  img.onload = imgload;

  img.src = "blue-50x50.png";

function imgload() {

  document.documentElement.classList.remove("reftest-wait");

</script>

<body onload="run()">

<div style="width: max-content"><img src="blue-100x50.png" style="width: 100%; height: 50px"></div>