body {
    background-color: black;
    color: white;
    font-family:serif;
    font-size:16px;
    min-height:calc(100vh - 15px);
    margin-left:30px;
    max-width:624px;
    clear:both;
    position:relative;
}
::selection {
  color: white;
  background: #e69500;
}
a:link {
    color: #ffffd4;
}
a:visited {
    color: #ffffd4;
}
a:hover {
    color: grey;
}
a:active {
    color: red; 
}
code {
    background-color: #4c4e52; 
    white-space: pre;
    line-height: 1.0;
}
img {
    display: block;
    margin-left: auto;
    margin-right: auto;
}