July 18, 2016 20:15 · Jul 18, 2016
diff --git a/404 page animation - missing book.markdown b/404 page animation - missing book.markdown
@@ -0,0 +1,7 @@
+404 page animation - missing book
+---------------------------------
+
+
+A [Pen](http://codepen.io/wwwebneko/pen/KrkyLz) by [Valeriya](http://codepen.io/wwwebneko) on [CodePen](http://codepen.io/).
+
+[License](http://codepen.io/wwwebneko/pen/KrkyLz/license).
diff --git a/index.html b/index.html
@@ -0,0 +1,13 @@
+<nav class="shelf">
+  <a class="book home-page">Home page</a>
+  <a class="book about-us">About us</a>
+  <a class="book contact">Contact</a>
+  <a class="book faq">F.A.Q.</a>
+
+  <span class="book not-found"></span>
+
+  <span class="door left"></span>
+  <span class="door right"></span>
+</nav>
+<h1>Error 404</h1>
+<p>The page you're loking for can't be found</p>
diff --git a/style.postcss b/style.postcss
@@ -0,0 +1,154 @@
+@import url(https://fonts.googleapis.com/css?family=Dancing+Script:400,700);
+@use postcss-nested;
+
+body, html {
+  height: 100%;
+}
+
+body {
+  display: flex;
+  margin: 0;
+  padding: 0;
+  background-color: #446072;
+  font-family: monospace;
+  color: white;
+  justify-content: center;
+  align-items: center;
+  flex-direction: column;
+  overflow: hidden;
+}
+h1 {
+  margin-top: 2rem;
+}
+.shelf {
+  position: relative;
+  width: 30rem;
+  height: 14rem;
+  border: 0.5rem solid #374d5b;
+  border-radius: 0.5rem;
+  background-color: rgba(255, 255, 255, 0.1);
+  perspective: 130rem;
+  box-shadow: inset 0 0 2rem rgba(0, 0, 0, 0.2);
+}
+.door {
+  position: absolute;
+  width: 14.8rem;
+  height: 14rem;
+  display: flex;
+  box-sizing: border-box;
+  padding: 1rem;
+  background-color: #374d5b;
+  align-items: center;
+  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.3);
+
+  &::before {
+    width: 1.5rem;
+    height: 1.5rem;
+    border-radius: 50%;
+    background-color: rgba(0, 0, 0, 0.1);
+    content: "";
+  }
+  &.left {
+    border-radius: 0 0.75rem 0.75rem 0;
+    justify-content: flex-end;
+    animation: 
+      leftDoorOpen 3.5s ease-out forwards 1s,
+      leftDoorFlap 15s linear infinite forwards 9s;
+    transform-origin: 0 0 0;
+  }
+  &.right {
+    right: 0;
+    border-radius: 0.75rem 0 0 0.75rem;
+    animation: 
+      rightDoorOpen 3s ease-out forwards 1.5s,
+      rightDoorFlap 10s linear infinite forwards 8s;
+    transform-origin: 100% 0 0;
+  }
+}
+.book {
+  position: absolute;
+  box-sizing: border-box;
+  padding: 0.8rem 4rem 0.8rem 2rem;
+  border-radius: 0.25rem;
+  background-color: rgba(255, 255, 255, 0.1);
+  color: white;
+  font-size: 1rem;
+  text-transform: uppercase;
+  letter-spacing: 0.1rem;
+  cursor: pointer;
+  box-shadow: inset 0 0 0.75rem rgba(255, 255, 255, 0.1);
+  &.home-page {
+    transform: rotate(-90deg) translate(-12.4rem, 3rem);
+    transform-origin: 0;
+  }
+  &.about-us {
+    transform: rotate(-100deg) translate(-13.4rem, 6.1rem);
+    transform-origin: 0;
+  }
+  &.contact {
+    right: 2rem;
+    bottom: 0.2rem;
+    border-radius: 0.3rem 0 0 0.3rem;
+  }
+   &.faq {
+    right: 0.8rem;
+    bottom: 3.3rem;
+    border-radius: 0.3rem 0 0 0.3rem;
+  }
+  &.not-found {
+    width: 12rem;
+    height: 3.5rem;
+    border: 1px dashed rgba(255, 255, 255, 0.3);
+    background-color: transparent;
+    transform: rotate(-90deg) translate(-12rem, 13rem) scale(1);
+    transform-origin: 0;
+    cursor: default;
+    animation: bookFadeOut 1s 3s infinite forwards;
+
+    &::after {
+      display: block;
+      width: 10rem;
+      padding-left: 5rem;
+      background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='80' height='30'><path fill='rgb(255, 255, 255)' d='M7.688,3.737C6.1,10.409,4.624,16.982,2.475,23.517c-0.424,1.29,0.724,2.338,1.957,1.916 c5.879-2.021,11.743-4.107,17.409-6.696c1.246-0.572,0.443-2.366-0.815-1.932c-3.856,1.333-7.695,2.69-11.565,3.959 c2.879-2.526,5.485-5.215,9.013-7.17c4.441-2.459,9.299-4.109,14.281-4.915c10.903-1.772,22.052,0.562,31.979,5.04 c9.241,4.162,12.895,8.725,13.164,4.942c0.121-1.69-5.57-4.953-14.125-8.714C53.19,5.292,41.094,3.539,29.636,6.058 c-7.122,1.567-16.708,5.374-22.064,11.544c1.359-4.455,2.461-9.028,3.032-13.563C10.852,2.091,8.12,1.927,7.688,3.737z'/></svg>");
+      background-repeat: no-repeat;
+      background-size: 4rem;
+      background-position: left center;
+      font-family: "Dancing Script";
+      text-transform: lowercase;
+      font-size: 25px;
+      content: "this page can't be found";
+      transform: rotate(90deg) translate(6rem, -1rem);
+      opacity: 0.3; 
+    }
+  }
+  &:hover:not(.not-found) {
+    background-color: rgba(255, 255, 255, 0.2);
+  }
+}
+@keyframes leftDoorOpen {
+  60% {transform: rotateY(-115deg)}
+  100% {transform: rotateY(-110deg)}
+}
+@keyframes rightDoorOpen {
+  60% {transform: rotateY(125deg)}
+  100% {transform: rotateY(120deg)}
+}
+@keyframes rightDoorFlap {
+  0% { transform: rotateY(120deg)}
+  5% {transform: rotateY(125deg)}
+  15% {transform: rotateY(117deg)}
+  25% {transform: rotateY(123deg)}
+  30% {transform: rotateY(120deg)}
+  100% {transform: rotateY(120deg)}
+}
+@keyframes leftDoorFlap {
+  0% { transform: rotateY(-110deg)}
+  5% {transform: rotateY(-115deg)}
+  15% {transform: rotateY(-107deg)}
+  25% {transform: rotateY(-113deg)}
+  30% {transform: rotateY(-110deg)}
+  100% {transform: rotateY(-110deg)}
+}
+@keyframes bookFadeOut {
+  50% {border: 1px dashed rgba(255, 255, 255, 0.1);}
+}