Since the pages are made of codes, it is an interesting way to add coding effect to the pages and talk with the visitors by code language. The script is a sample of such pages. When it is loaded, it looks like a person is typing a code which includes a message for you that the page is not found and the owners are sorry about it.


HTML
<!-- This script got from www.devanswer.com  -->
<p>HTTP: <span>404</span></p>
<code><span>this_page</span>.<em>not_found</em> = true;</code>
<code><span>if</span> (<b>you_spelt_it_wrong</b>) {<span>try_again()</span>;}</code>
<code><span>else if (<b>we_screwed_up</b>)</span> {<em>alert</em>(<i>"We're really sorry about that."</i>); <span>window</span>.<em>location</em> = home;}</code>
<center><a href="#">HOME</a></center><div id="bcl"><a style="font-size:8pt;text-decoration:none;" href="http://www.devanswer.com ">Developers Answer</a></div>
                        

CSS
@import url("https://fonts.googleapis.com/css?family=Bevan");
* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  background: #282828;
  overflow: hidden;
}

p {
  font-family: "Bevan", cursive;
  font-size: 130px;
  margin: 10vh 0 0;
  text-align: center;
  letter-spacing: 5px;
  background-color: black;
  color: transparent;
  text-shadow: 2px 2px 3px rgba(255, 255, 255, 0.1);
  -webkit-background-clip: text;
  -moz-background-clip: text;
  background-clip: text;
}
p span {
  font-size: 1.2em;
}

code {
  color: #bdbdbd;
  text-align: center;
  display: block;
  font-size: 16px;
  margin: 0 30px 25px;
}
code span {
  color: #f0c674;
}
code i {
  color: #b5bd68;
}
code em {
  color: #b294bb;
  font-style: unset;
}
code b {
  color: #81a2be;
  font-weight: 500;
}

a {
  color: #8abeb7;
  font-family: monospace;
  font-size: 20px;
  text-decoration: underline;
  margin-top: 10px;
  display: inline-block;
}

@media screen and (max-width: 880px) {
  p {
    font-size: 14vw;
  }
}
Javascript
function type(n, t) {
  var str = document.getElementsByTagName("code")[n].innerHTML.toString();
  var i = 0;
  document.getElementsByTagName("code")[n].innerHTML = "";

  setTimeout(function () {
    var se = setInterval(function () {
      i++;
      document.getElementsByTagName("code")[n].innerHTML =
      str.slice(0, i) + "|";
      if (i == str.length) {
        clearInterval(se);
        document.getElementsByTagName("code")[n].innerHTML = str;
      }
    }, 10);
  }, t);
}

type(0, 0);
type(1, 600);
type(2, 1300);