html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-size: 10px;
    font-family: sans-serif;
  }
  header {
    font: 25px bold;
  }
  button {
    font-size: 15px;
  }
  section {
    padding: 10px;
  }

  #folderList {
    width: 300px;
    height: 280px;
    padding: 0 20px;
    overflow: auto;
    border: 1px solid;
  }
  #debug {
    padding: 0.5em;
    border: thin inset;
    font: small monospace;
    color: black;
  }
  .audio, .video, .image, .folder, #folderlist a {
    display: block;
    padding-left: 25px;
    margin: 25px 0;
    font-size: 15px;
  }
  a.folder {
    color: #FF9900;
    padding-left: 40px;
    background: url(image/folder_closed.png) left center no-repeat,
                url(image/icon_folder.png) left 20px center no-repeat;
  }
  a.folder.opened {
    background: url(image/folder_opened.png) left center no-repeat,
                url(image/icon_folder.png) left 20px center no-repeat;
  }
  .audio {
    color: #00CC66;
    background: url(image/icon_music.png) left center no-repeat;
  }
  .video {
    color: #00CC66;
    background: url(image/icon_video.png) left center no-repeat;
  }
  .image {
    color: #00CC66;
    background: url(image/icon_image.png) left center no-repeat;
  }
  .server {
    background: url(image/icon_server.png) left center no-repeat;
    font: 15px bold;
    padding: 0 25px;
    margin-top: 20px;
  }
  .sublist {
    margin-left: 20px;
  }
  .player {
    height: 150px;
  }
  a:hover {
    color: #003399;
  }
  a:visited {
    color: #999999;
  }
  .hide {
    display: none;
  }