<!DOCTYPE html>
<link rel="author" title="Stephen Chenney" href="mailto:schenney@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#border-width">
<link rel="match" href="reference/subpixel-borders-with-child-border-box-sizing-ref.html">
<meta name="assert" content="Sub-pixel borders should always appear, and not be
    overdrawn by child content with box-sizing: border-box." />
<head>
  <style>
    body {    }
    .outer {
        border: solid .5px black;
        background: red;
        width: 101px;
        height: 101px;
        margin: 5px;
        padding: 0px;
        box-sizing: border-box;
    }
    .inner {
        background: lightgreen;
        padding: 0px;
        box-sizing: border-box;
    }
    #inner1 {
        width: 99px;
        height: 99px;
    }
    #inner2 {
        width: 100%;
        height: 100%;
    }
  </style>
</head>
<body>
  <div class="outer">
    <div class="inner" id="inner1"></div>
  </div>

  <div class="outer">
    <div class="inner" id="inner2"></div>
  </div>
</body>
