CodePen Embed - Product landing page (reverse engineered)

<!-- reverse engineered this website: https://www.oneplus.com/uk/6 -->

  <!--

  if i had more time i would make:
    1) the menu collapse into three bars that:
      a) animates when clicked on
      b) expands into a sidebar style menu
    2) make the footer more detailed (using CSS3 grid)
    
   -->

  <header id="header">
    <img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726627/product-landing-page/logo.jpg" alt="OnePlus logo" id="header-img">
    <h1>OnePlus 6</h1>
    <div class="user-details">
      <span><i class="fa fa-user"></i></span>
      <span><i class="fa fa-shopping-bag"></i></span>
      <span>🇬🇧</span>
    </div>
    <nav id="nav-bar">
      <ul>
        <li><a class="nav-link" href="#speed">speed</a></li>
        <li><a class="nav-link" href="#display">display</a></li>
        <li><a class="nav-link" href="#camera">camera</a></li>
        <li><a class="nav-link" href="#design">design</a></li>
        <li><a class="nav-link" href="#oxygenos">OxygenOS</a></li>
        <li><a class="nav-link" href="#resistance">resistance</a></li>
        <li><a class="nav-link" href="#headphones">headphones</a></li>
      </ul>
      <button><span></span>Buy now</button>
    </nav>
  </header>

  <main> 

    <div class="block one">
      <p class="d2">OnePlus 6</p>
      <p class="d2">Lorem ipsum dolor</p>
      <p class="d3">From £469</p>
    </div>
    <div id="block1">
      <img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726593/product-landing-page/block1.jpg" alt="phone1">
    </div>

    <div class="block two">
      <button>
        <i class="fa fa-play"></i>
        <img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726627/product-landing-page/block2a.jpg" alt="phone">
      </button>
      <button>
        <i class="fa fa-play"></i>
        <img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726630/product-landing-page/block2b.jpg" alt="phone">  
      </button>
    </div>

    <div class="block three" id="speed">
      <p class="d1">Fast and Smooth</p>
      <p class="d2">The Speed You Need.</p>
      <p class="d3">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
      tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
      quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
      consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse.</p>
      <p class="d4"><a href=#>Learn more</a></p>
    </div>
    <div id="block3">
      <img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726614/product-landing-page/block3.png" alt="phone3">
    </div>

    <div class="block four" id="display">
      <p class="d1">Display</p>
      <p class="d2">More to see.</p>
      <p class="d3">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
      tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
      quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
      consequat. Duis aute irure dolor.</p>
      <p class="d4"><a href=#>Learn more</a></p>
    </div>
    <div id='block4'>
      <img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726612/product-landing-page/block4.png" alt="phone4">
    </div>

    <div class="block five" id="camera">
      <p class="d1">Dual Camera</p>
      <p class="d2">Capture in no time.</p>
      <p class="d3">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
      tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
      quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo.</p>
      <p class="d4"><a href=#>Learn more</a></p>
    </div>
    <div id='block5'>
      <img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726621/product-landing-page/block5.png" alt="phone5">
    </div>

    <div class="block six" id="design">
      <p class="d1">Design</p>
      <p class="d2">The OnePlus way.</p>
      <p class="d3">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
      tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam.</p>
      <p class="d4"><a href=#>Learn more</a></p>
    </div>
    <div id='block6'>
      <img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726605/product-landing-page/block6.jpg" alt="phone6">
    </div>

    <div class="block seven" id="oxygenos">
      <p class="d1">OxyenOS</p>
      <p class="d2">Do more with less.</p>
      <p class="d3">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
      tempor incididunt ut labore et.</p>
      <p class="d4"><a href=#>Learn more</a></p>
    </div>
    <div id='block7'>
      <img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726621/product-landing-page/block7a.png" alt="phone7a">
      <img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726623/product-landing-page/block7b.png" alt="phone7b">
      <img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726628/product-landing-page/block7c.png" alt="phone7c">
    </div>

    <div class="block eight" id="resistance">
      <p class="d1">Water Resistant</p>
      <p class="d2">Guard against rain.</p>
      <p class="d3">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
      tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
      quis nostrud exercitation ullamco laboris nisi ut aliquip ex.</p>
      <p class="d4"><a href=#>Learn more</a></p>
    </div>
    <div id='block8'>
      <img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726620/product-landing-page/block8.jpg" alt="phone8">
    </div>

    <div class="block nine" id="headphones">
      <p class="d1">Bullet Wireless</p>
      <p class="d2">Best Buds for Life.</p>
      <p class="d3">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
      tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim ven.</p>
      <p class="d4"><a href=#>Learn more</a></p>
    </div>
    <div id='block9'>
      <img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726631/product-landing-page/block9.jpg" alt="phone9">
    </div>

    <div id="modal">
      <span>&times;</span>
      <div class="video-wrapper">
        <iframe id="video" width="560" height="315" src="https://www.youtube.com/embed/GcXUi1Xj9i8?rel=0" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>
      </div>
      <div class="video-wrapper">
        <iframe id="video" width="560" height="315" src="https://www.youtube.com/embed/IQSYW2aiVvk?rel=0" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>
      </div>
    </div>

  </main>

   <footer>
    <div class="contact">
      <form action="https://www.freecodecamp.com/email-submit" method="POST" id="form">
        <p>join our newsletter</p>
        <input type="email" name="user_mail" placeholder="e.g. johnsmith@mail.com" id="email"required>
        <button type="submit" id="submit"><span></span>suscribe</button>
      </form>

      <div class="social-media">
        <p>keep updated</p>
        <a><i class="fab fa-facebook"></i></a>
        <a><i class="fab fa-instagram"></i></a> 
        <a><i class="fab fa-twitter"></i></a>
      </div>
    </div>

    <div class="bottom">
      <p><span>🇬🇧</span> United Kingdom (English / GBP)</p>
      <p><span class="phone-number"><i class="fa fa-phone"></i> +55 5555 5555555</span>, 9:30am - 3:00am, Monday to Sunday</p>
      <hr>
      <span>© 2013 - 2018 OnePlus. All Rights Reserved</span>
      <a href="#" target="_blank">Privacy Policy</a>
      <a href="#" target="_blank">User Agreement</a>
      <a href="#" target="_blank">Terms of Sales</a>
    </div>
   </footer>
  
  <a href="https://github.com/AhmedAGadir" target="_blank"><img src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726623/product-landing-page/github-sign.svg" alt="link to my github" title="Check out my github"></a>

@import url('https://fonts.googleapis.com/css?family=Comfortaa|Open+Sans:300,400,600,700');

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: 'Open Sans', sans-serif;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ========== header and navbar styling =========*/

header {
  width: 100%;
  padding: 10px 40px;
  border-bottom: 1px solid #E5E5E5;
  background-color: white;
  position: fixed;
  top: 0;
  transition: all 0.25s ease;
  z-index: 3;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
}

header img {
  height: 30px;
}

@media (max-width: 330px) {
  header img {
    display: none;
  }
}

header h1 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #101920;
  margin-left: 185px;
}

@media (max-width: 600px) {
  h1 {
    display: none;
  }
}

header .user-details span {
  margin-left: 20px;
  font-size: 1.2rem;
  color: #828282;
  padding: 0 15px 10px 15px;
}

header .user-details span:hover {
  color: #101920;
  border-bottom: 2px solid #101920;
  cursor: pointer;
}

nav {
  padding: 15px 15px 0 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin: 0 auto;
}

@media (max-width: 600px) {
  nav ul {
    margin: unset;
    display: unset;
    position: relative;
    right: 30px;
  }
}

nav li {
  list-style-type: none;
}

nav li a {
  margin: 0 15px;
  padding: 10px 5px 15px 5px;
  color: #828282;
  text-transform: uppercase;
  letter-spacing: 0.05rem;
  font-size: 0.8rem;
}

nav li a:hover {
  color: #EB0028;
  border-bottom: 2px solid #EB0028;
}

nav button {
 /*remove default styling*/
  /*outline: none;*/
  border: none;
  box-shadow: none;

  min-width: 110px;
  height: 50px;
  background: #EB0028;
  color: white;
  font-size: 0.9rem;
  border-radius: 2px;
  position: relative;
  z-index: 1;
}

nav button span {
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 2px;
  background: #CE0024;
  height: 100%;
  z-index: -1;

  /*javascript used for animation-name setting*/
  animation-duration: 0.5s;
  animation-fill-mode: forwards;
}

nav button:hover {
  cursor: pointer;
}

@keyframes buttonEffect {
  0% {
    width: 0px;
  }
  100% {
    width: 100%;
  }
}

@keyframes buttonEffectRemoval {
  0% {
    width: 100%;
  }
  100% {
    width: 0px;
  }
}

@media (max-width: 1000px) {
  nav li a {
    padding-bottom: 0px;
  }
}

/* ========== main body styling =========*/

main {
  text-align: center;
}

.block {
  padding: 50px;
  /*padding top needed for navbar links */
  padding-top: 50px;
}

@media (max-width: 780px) {
  .block:not(.one):not(.two) {
    text-align: left;
  }
  .d4 {
    text-align: center;
  }
}

.d1:nth-of-type(odd), .d2:nth-of-type(odd) {
  background: linear-gradient(to right, #cda330, #73622a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.d1:nth-of-type(even), .d2:nth-of-type(even) {
  background: linear-gradient(to right, #762FC4 ,black 90%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.d1 {
  font-family: 'Comfortaa', cursive;
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 30px;
}

.d2 {
  font-family: 'Comfortaa', cursive;
  font-size: 3.5rem;
  font-weight: 700;
  padding: 13px 0;
}

.d3 {
  font-size: 1.2rem;
  color: #676767;
}

.d4 {
  margin: 40px auto;
  width: 135px;
  font-size: 1.3rem;
  padding: 0 10px;
  border-bottom: 2px solid #101920;
  transition: 0.2s all ease-in;
  position: relative;
  z-index: 2;
}

.d4:hover {
  width: 150px;
  color: #EB0028;
  padding: 0 10px;
  border-bottom: 2px solid #EB0028;
}

.one .d2:first-child {
  margin-top: 200px;
  padding-bottom: 0;
  font-size: 3.5rem;
  font-weight: 400;
  -webkit-text-fill-color: black;
}

.one .d2:nth-child(2) {
  font-size: 4rem;
  font-weight: 600;
  -webkit-text-fill-color: black;
}

.one .d3 {
  font-size: 2.5rem;
  font-weight: 400;
  margin-bottom: 20vh;
}

/* ========== images ========= */

main > img {
  display: block;
  margin: 60px auto;
}

img[alt="phone1"] {
  width: 40%;
}

/* */
.two {
  position: relative;
  top: -20vh;
  padding: 0;
  display: flex;
  height: 65vh;
  transform-origin: left;
  transform: skewY(-3.5deg);
  overflow: hidden;
}

.two .fa-play {
  font-size: 2rem;
  color: white;
  margin-top: 30vh;
  transition: all 0.5s ease
}

.two .fa-play:hover {
  /*set using javascript*/
}

.two > button > img {
  width: 50vw;
  visibility: hidden;
}

.two button {
  /*remove default styling*/
  /*outline: none;*/
  border: none;
  box-shadow: none;

  transform: skewY(3.5deg);
  transform-origin: right;
  height: 100vh;
  transition: all 0.5s ease;
}

.two > button:first-child {
  background: url('https://res.cloudinary.com/ahmedagadir/image/upload/v1530726627/product-landing-page/block2a.jpg');
  background-size: 50vw;
  background-position: left 5vh;
  background-attachment: fixed;
  background-repeat: no-repeat;
}

.two > button:last-child {
  background: url('https://res.cloudinary.com/ahmedagadir/image/upload/v1530726630/product-landing-page/block2b.jpg');
  background-size: 50vw;
  background-position: right 5vh;
  background-attachment: fixed;
  background-repeat: no-repeat;
}

.two button:hover {
  background-blend-mode: hard-light;
  cursor: pointer;
}

.two button:first-child:hover {
  background-color: #8974C2;
}

.two button:last-child:hover {
  background-color: #C6B27B;
}

@media (max-width: 900px) {
  .two > button:first-child,
  .two > button:last-child {
    background-size: 80vw;
  }
}

@media (max-width: 500px) {
  .two > button:first-child,
  .two > button:last-child {
    background-size: 130vw;
  }
}

/* ========== modal styling =========*/

#modal {
  position: fixed;
  background-color: rgba(0,0,0,1);
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 4;
  transition: all 0.5s ease;
  opacity: 0;
  display: none;
}

#modal span {
  font-size: 40px;
  color: white;
  float: right;
  padding: 10px 20px 0 20px;
  display: none;
  transition: all 0.3s ease;
  cursor: pointer;
}

#modal span:hover {
  color: #EB0028;
}

#modal .video-wrapper {
  clear: right;
  position: relative;
  padding-bottom: 56.25%; /* 16:9 aspect ratio; */
  height: 0;
  display: none;
}

#modal iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 70%;
  height: 70%;
  margin-left: 15vw;
}

/* ========== more images =========*/

img[alt="phone3"] {
  width: 80%;
}

#block4 img[alt="phone4"],
#block5 img[alt="phone5"],
#block6 img[alt="phone6"],
#block8 img[alt="phone8"],
#block9 img[alt="phone9"] {
  width: 50%;
  visibility: hidden;
  height: 120vh;
}

#block4 {
  background: url('https://res.cloudinary.com/ahmedagadir/image/upload/v1530726612/product-landing-page/block4.png');
  background-size: 80vh;
  background-attachment: scroll;
  background-position: center 25vh;
  z-index: 1;
}

#block5 {
  background: url('https://res.cloudinary.com/ahmedagadir/image/upload/v1530726621/product-landing-page/block5.png');
  background-size: 80vh;
  background-attachment: scroll;
  background-position: center 25vh;
  z-index: 1;
}

#block6 {
  background: url('https://res.cloudinary.com/ahmedagadir/image/upload/v1530726605/product-landing-page/block6.jpg');
  background-size: 100vw;
  background-attachment: fixed;
  background-position-y: -10vh;
}

#block8 {
  background: url('https://res.cloudinary.com/ahmedagadir/image/upload/v1530726620/product-landing-page/block8.jpg');
  background-size: 120vw;
  background-attachment: fixed;
  background-position: center;
}

#block9 {
  background: url('https://res.cloudinary.com/ahmedagadir/image/upload/v1530726631/product-landing-page/block9.jpg');
  background-size: 100vw;
  background-attachment: scroll;
  background-position: center;
  margin-bottom: 20vh;
}

#block4, 
#block5,
#block6, 
#block8,
#block9 {
  background-color: #674CAF;  
  background-repeat: no-repeat;
  position: relative;
}

@media (max-width: 768px) {
  #block9 {
    background-size: 200vw;
  }
}

@media (max-width: 425px) {
  #block4, #block5 {
    background-size: 50vw;
  }
  #block6 { 
    background-size: 170vw; 
  }
  #block8 {
    background-size: 230vw;
  }
}

@media (max-width: 375px) {
  #block9 img[src="https://res.cloudinary.com/ahmedagadir/image/upload/v1530726631/product-landing-page/block9.jpg"] {
  height: 100vh
  }
}

/* ========== skewed borders effect =========*/

#block4:before, #block4:after,
#block5:before, #block5:after,
#block6:before, #block6:after,
#block8:before, #block8:after, 
#block9:before {
  position: absolute;
  left: 0;
  content: '';
  width: 100%;
  height: 20vh;
  background: white;
  transform: skewY(-3.5deg);
}

#block4:before, 
#block5:before,
#block6:before,
#block8:before,
#block9:before {
  top: 0;
  transform-origin: bottom left;
 }

#block4:after, 
#block5:after,
#block6:after,
#block8:after {
  bottom: 0;
  transform-origin: top right;
}


#block7 {
  margin: 15vh auto;
  width: 80%;
  display: flex;
  align-items: flex-start;
  justify-content: space-around;
  flex-direction: wrap;
}

#block7 img {
  position: relative;
  max-width: 30%;
}

#block7 img:nth-of-type(1) {
  margin-top: 260px;
}

#block7 img:nth-of-type(2) {
  margin-top: 160px;
}

#block7 img:nth-of-type(3) {
  margin-top: 60px;
}

/* ========== fading in animtions =========*/
/*animation names are set using JS */

.block:not(.two) {
  position: relative;
  top: -45px;
  z-index: 2;
  
  animation-duration: 0.9s;
  animation-fill-mode: forwards;
  animation-timing-function: ease-out;
  visibility: hidden;
}

#block7 img {
  animation-fill-mode: forwards;
  animation-timing-function: ease-out;
  visibility: hidden;
}

#block7 img:nth-child(1) {
  animation-delay: 200ms;
  animation-duration: 800ms;
}

#block7 img:nth-child(2) {
  animation-delay: 100ms;
  animation-duration: 900ms;
}

#block7 img:nth-child(3) {
  animation-delay: 0;
  animation-duration: 1000ms;
}

@keyframes fade-in-a {
  0% {
    top: 35px;
    opacity: 0.1;
  }
    100% {
    visibility: unset;
    top: 0px;
    opacity: 1;
  }
}

#block4, #block5 {
  animation-duration: 1s;
  animation-delay: 100ms;
  animation-fill-mode: forwards;
  animation-timing-function: ease-out;
  visibility: hidden;
}

@keyframes fade-in-b {
  0% {
    background-position: center 35vh;
    opacity: 0.1;
  }
    100% {
    visibility: unset;
    background-position: center 25vh;
    opacity: 1;
  }
}

/* ========== footer =========*/

footer {
  border-top: 2px solid #E5E5E5;
  display: flex;
  flex-wrap: wrap;
  color: #828282;
  justify-content: space-between;
  margin: 5vh 0;
}

.contact, .bottom {
  width: 100%;
  padding: 40px 20px 0 20px;
}

.contact {
  display: flex;
  flex-wrap: wrap;
  text-align: center;
}

.contact p, 
.contact button {
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05rem;
}

.contact p {
  margin-bottom: 20px;
}

.contact form, 
.contact .social-media {
  flex: 1 400px;
  margin-bottom: 40px;
}

.contact input[type="email"] {
  width: 250px;
  height: 40px;
  font-size: 1rem;
  text-indent: 5px;
  box-shadow: none;
  
  -webkit-appearance: none;
  -moz-appearance: none;
  -o-appearance: none;
  -ms-appearance: none;
  appearance: none;
}

.contact button {
  width: 110px;
  height: 40px;
  font-size: 0.9rem;
  background-color: #00C4ED;
  color: white;
  transition: all 0.3s ease;
  border: 0;
  outline: none;
  box-shadow: none;
  border-radius: 2px;
  position: relative;
  z-index: 1;
}

.contact button span {
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 2px;
  background: #00A7CA;
  height: 100%;
  z-index: -1;

  /*animation-name: buttonEffect or buttonEffectRemoval // set using javascript;*/
  animation-duration: 0.5s;
  animation-fill-mode: forwards;
}

.contact button:hover {
  /*background-color: #00A7CA;*/
  cursor: pointer;
}

@media (max-width: 425px) {
  .contact button {
    margin-top: 10px;
  }
}

.contact .social-media i {
  font-size: 2rem;
  padding: 0px 20px;
  color: #828282;
  transition: all 0.3s ease;
}

.contact .social-media i:hover {
  color: #EB0028;
  cursor: pointer;
}

.bottom {
  background-color: #F9F9F9;
}

.bottom .phone-number {
  color: #49B5D9
}

.bottom p {
  padding: 10px 0;
}

.bottom p:first-of-type {
  float: left;
}

.bottom p:last-of-type {
  float: right;
}

.bottom hr {
  clear: both;
  margin: 20px 0;
  border-top: 1px solid #E5E5E5;
}

@media (max-width: 768px) {
  .bottom p:first-of-type,
  .bottom p:last-of-type {
    float: initial;
  }
}

.bottom > span, 
.bottom > a {
  font-size: 0.8rem;
  margin-right: 20px;
}

/* ========== github logo =========*/

img[alt="link to my github"] {
  position: fixed;
  bottom: 0;
  right: 0;
  width: 40px;
  margin: 20px;
  opacity: 0.7;
  transition: all 0.3s ease;
}

img[alt="link to my github"]:hover {
  opacity: 1;
}











/* 
  dark: 101920;
  #676767
  middle: 828282;
  light: E5E5E5;

  middle-grey: #828282;
  light: #B6B6B6;
  superlight: ##E5E5E5;
  red: #EB0028;
  lilac: #BE9AE1;
  purple: #4F499A;
  dark-purple: #1F2566;
  light-blue: #00ABDC;
*/


// ============= SCROLLING ANIMATIONS =================

window.addEventListener('DOMContentLoaded', e => {
  document.querySelector('.one').style.animationName = 'fade-in-a';
})

window.addEventListener('scroll', e => {
  // console.log(parseInt(document.querySelector('.three').getBoundingClientRect()['top']), parseInt(innerHeight) + 200)
  if (pageYOffset > 30) {
    document.querySelector('header').style.top = (innerWidth < 600) ? '-50px' : '-45px';
  } else {
    document.querySelector('header').style.top = '0px';
  }
  // hecks whether the element is within the limits of the viewport or not
  let fade = (element, animationName) => {
    if (element.getBoundingClientRect()['top'] < innerHeight) 
      element.style.animationName = animationName;
  }; 
  
  Array.from(document.querySelectorAll('.block:not(.one):not(.two)')).forEach(block => fade(block, 'fade-in-a'));
  Array.from(document.querySelectorAll('#block7 img')).forEach(image => fade(image, 'fade-in-a'));
  fade(document.querySelector('#block4'), 'fade-in-b');
  fade(document.querySelector('#block5'), 'fade-in-b');
})



// ============= VIDEO AND MODAL STYLING =================

Array.from(document.querySelectorAll('.two button')).forEach((button, ind) => {
  button.addEventListener('mouseover', () => button.firstElementChild.style.color = '#EB0028')
  button.addEventListener('mouseout', () => button.firstElementChild.style.color = '#FFF')
  button.addEventListener('click', () => openModal(ind))
})

function openModal(ind) {
  document.querySelectorAll('.video-wrapper iframe')[ind].src += '&autoplay=1';

  document.querySelector('#modal').style.display  = 'block';
  document.querySelector('#modal span').style.display = 'block';
  document.getElementsByClassName('video-wrapper')[ind].style.display = 'block';

  setTimeout( () => document.querySelector('#modal').style.opacity  = '1', 100)
}

document.querySelector('#modal span').addEventListener('click', closeModal);
document.querySelector('#modal').addEventListener('click', closeModal);

function closeModal() {

  document.querySelector('#modal').style.opacity  = '0';

  setTimeout( () => { 
    document.querySelector('#modal').style.display  = 'none';
    document.querySelector('#modal span').style.display = 'none';
    Array.from(document.getElementsByClassName('video-wrapper')).forEach(wrapper => wrapper.style.display = 'none');
  }, 500)

  Array.from(document.querySelectorAll('.video-wrapper iframe')).forEach(iframe => {
    // replace the source attribute with itself to reset the video
    // also remove the autoplay 
    iframe.src = iframe.src.replace('&autoplay=1','');;
  })
}



// ============= NAVIGATION BAR AND CONTACT BUTTON EFFECT =================

document.querySelector('nav button').addEventListener('mouseover', () => {
  document.querySelector('nav button span').style.animationName = 'buttonEffect'
})
document.querySelector('nav button').addEventListener('mouseout', () => {
  document.querySelector('nav button span').style.animationName = 'buttonEffectRemoval'
})

document.querySelector('.contact button').addEventListener('mouseover', () => {
  document.querySelector('.contact button span').style.animationName = 'buttonEffect'
})
document.querySelector('.contact button').addEventListener('mouseout', () => {
  document.querySelector('.contact button span').style.animationName = 'buttonEffectRemoval'
})

This Pen is owned by Ahmed on CodePen.

See more by @AhmedAGadir on CodePen

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