body {
  /*font-family: sans-serif;*/
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";
  font-size: larger;
}

#header {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 60em;
}

#header > img {
  display: block;
  margin-left: auto;
  margin-right: auto;
  padding-top: 2em;
  padding-bottom: 2em;
  width: 600px;
}

#content {
  margin-left: auto;
  margin-right: auto;
  width: 60em;
}

#footer > img { 
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 60em;
}

#content table {
  margin-left: auto;
  margin-right: auto;
  border-collapse: collapse;
}

#content table {
  border: 1px solid;
}

#content table tr th, 
#content table tr td {
  border: 1px solid;
}

#content table tr td.norightborder {
  border-right: hidden;
}

#content table tr th, 
#content table tr td {
  padding: 5px;
}

#content table tr:nth-child(even) {
}

#content table tr:nth-child(odd) {
  background: #EEE;
}

#content table tr.invert {
  background-color: black;
  color: white;
}

#content table tr.invert2 {
  background-color: #444;
  color: white;
}

#content table tr td:nth-child(1) {
  text-align: center;
  width: 12em;
}

#content table tr td:nth-child(2) {
  text-align: left;
}

#content table tr td img {
  vertical-align: top;
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 100px;
}