body {
  font-family: "MS Sans Serif", sans-serif;  /* you can change the font */
  background-color: #0a0a0a;                 /* page background colour */
  color: #e0e0e0;                            /* text colour */
  margin: 0;
  padding: 20px;
  font-size: 16px;                           /* you can change text size */
}

.window {
  background: #1a1a1a;                       /* box background colour */
  border: 2px solid #444;
  padding: 20px;
  box-shadow: 2px 2px 6px #000000;
}

a {
  color: #990000;                            /* link colour */
  text-decoration: none;
}

a:hover {
  text-decoration: underline;                /* when the mouse moves over the link */
}

<img src="portrait.jpg" alt="Author portrait" width="200">