body {
    background: #EFEFEF;
    color: black;
    font-family: monospace;
}

A:link {
    color: black;
    text-decoration: none;
}

A:visited {
    color: black;
    text-decoration: none;
}

img {
  border-color: black;
  border-width: 1px;
}

.main {
  border-width: 1px;
  border-color: black;
  border-style: solid;
}

.center {
  position:absolute;
  left: 50%;
  top: 10px;
  margin-left: -300px;
  text-align: center;
}

.single {
  margin-top: 239px;
  margin-bottom: 239px;
}

.row {
  margin-top: 125px;
  margin-bottom: 125px;
}