css/css-overflow/input-scrollable-region-001.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Input Text Padding and Overflow: css-overflow-3</title>
<link rel="author" title="Boaz Sender, Ali Juma, Robert Ma">
<link rel="help" href="https://drafts.csswg.org/css-overflow-3/#scrollable">
<link rel="match" href="reference/input-scrollable-region-001-ref.html">
<meta name="assert" content="input text is preserved when the (input height
                             minus the input padding minus the input border) is
                             smaller than the height of the text">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
input {
  font-family: Ahem;
  width: 100px;
  margin: 0px;
  border: 1px solid black;
  height: 30px;
  padding: 10px;
  font-size: 18px;
  box-sizing: border-box;
  line-height: 1;
}

</style>
<body>
  <input type="text" value="foo">
</body>