body {
    background: #1f1f1f
}
#container {
    background-color: white;
    width: 1800px;
    margin-left: auto;
    margin-right: auto;
}
#header {
  background-color: #ffffff;
  color: black;
  text-align: center;
}
#content {
  padding: 10px;
}
#main {
  width: 600px;
}
    h1 {
    text-align: center;
    color: black;
    font-size: 40px;
}
    h2 {
    color: black
}
    a {
        color: green;
}