#paragraph::first-letter {
  color: red;
  font-size: 200%;
  text-shadow: 1px 1px 1px gray;
}
#paragraph::first-line {
  color: green;
  font-size: 120%;
  text-shadow: 1px 1px 1px gray;
}
::selection {
    background: yellow;
    color: black;
}
.class2::after {
  content: "(This is after the text)";
  color: orange;
  font-size: 80%;
}
.class2::before {
  content: "(This is before the text)";
  color: lightblue;
  font-size: 80%;
}