css/css-sizing/button-min-width.html

<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>min-width: Should apply to buttons</title>
<link rel="author" href="mailto:masonf@chromium.org">
<link rel="help" href="https://www.w3.org/TR/CSS2/visudet.html#min-max-widths">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
.button-row {
  background-color: #BBB;
  display: flex;
  flex-direction: row;
  width: 400px;
  margin-top: 8px;
}
button {
  flex: 0 0 auto;
  margin: 0px;
}
</style>
<div>
  <p>Expected: All buttons should be 200px wide</p>
</div>
<div class="button-row">
    <button style="min-width: 200px">Foo</button>
    <button style="min-width: 200px">Bar</button>
</div>
<div class="button-row">
    <button style="min-width: 50%">Foo</button>
    <button style="min-width: 50%">Bar</button>
</div>
<div class="button-row" style="writing-mode: vertical-rl; height: 100px;flex-direction:column">
    <button style="min-width: 200px">Foo</button>
    <button style="min-width: 200px">Bar</button>
</div>
<div class="button-row" style="zoom:2">
    <button style="min-width: 200px">Foo</button>
    <button style="min-width: 200px">Bar</button>
</div>
<script>
test(() => {
  let buttons = document.querySelectorAll("button");
  for (let button of document.querySelectorAll("button"))
    assert_equals(button.offsetWidth, 200);
}, 'min-width should force all buttons to be 200px wide');
</script>