popup.html

<!DOCTYPE html>
<html>
  <head>
    <link rel="stylesheet" href="popup.css" />
  </head>
  <body>
    <h2>Github Reviewer Groups</h2>
    <h5 style="margin-bottom: 4px">
      Access Key
      <span id="accessKeyLink">(make one)</span>
    </h5>
    <input id="accessKey" type="password" />
    <div id="groupSelectRow">
      <select id="groupSelect" aria-placeholder="group select"></select>
      <button id="createGroupBtn">+</button>
      <button id="deleteGroupBtn">-</button>
    </div>
    <div id="groupBody">
      <h5>Group Name</h5>
      <input id="groupName" />
      <p>Separate usernames with commas</p>
      <textarea id="usernames"></textarea>
      <button id="addReviewersBtn">Add Reviewers</button>
      <p id="infoText"></p>
      <p id="errorText"></p>
    </div>
    <script src="popup.js"></script>
  </body>
</html>