<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" type="text/css" href="ahem.css" />
  <title>Reference: Preserved whitespace should contribute to overall backplate sizing.</title>
  <style>
    body {
      font: 20px Ahem;
    }
    .sample {
      background-image: url("blue.png");
      white-space: pre;
      padding: 10px;
    }
    .fake-backplate {
      background-color: white;
      width: max-content;
    }
    .no-backplate {
        display: inline-block;
    }
    </style>
</head>
<body>
ppppp ppppp<div class="sample"><span class="fake-backplate">     ppppp ppppp</span></div>ppppp ppppp
<div class="sample"><span class="fake-backplate">ppppp ppppp     </span></div>
<div class="sample"><span class="no-backplate"></span></div>
</body>
</html>