<html>

<head>
    <meta charset="utf-8" />
    <style lang="text/css">
        .io {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            grid-gap: 10px;
            grid-auto-rows: minmax(50px, auto);
        }

        .io label {
            display: block;
            height: 1.8em;
        }

        .io textarea {
            width: 100%;
            height: 200px;
            padding: 2px 1px 1px 2px;
        }

        .io code {
            white-space: pre;
  