body {
  margin: 0px;
  background: #ececec;
  font-family: Helvetica Neue, Helvetica, Arial;
  font-size: 14px;
  line-height: 22px;
  color: #333;
}

#main {
  background: #fff;
  margin: 150px auto 30px auto;
  padding: 20px;
  width: 900px;

  box-shadow: 0 0 5px #ccc;
}

#mytabs {
  margin-top: 30px;
}

pre {
  background: #f9f9f9;
  padding: 10px;
  overflow: auto;
  overflow-Y: hidden;
}

a {
  background: #92C415;
  padding: 4px 8px;
  color: #fff;
  text-decoration: none;
}
  a.r {
    border-radius: 5px;
  }
a:hover {
  background: #000;
}

table {
  border-spacing: 0;
  border-color: #ddd;
}
th {
  background: #eee;
}
th, td {
  padding: 10px;
  border-color: #ddd;
}