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HTML 

              
                <body>
<div class="wrapper">
<div class="wrap">
  <header>   
    <div class="logo"></div>
    <nav>
      <ul>
        <li></li>
        <li></li>
        <li></li>
      </ul>
    </nav>
  </header>
  
  <div class="arrow animated bounce"></div>
  
  <section class="transparent">
    <div class="headline"></div>
    <div class="text"></div>
    <div class="text"></div>
    <div class="button"></div>
  </section>
  
  <section class="cards">
    <div class="card">
      <img src="https://imgplaceholder.com/500x300/transparent/ddd/ion-image" alt="">
      <div class="content">
        <div class="headline"></div>
        <div class="text"></div>
        <div class="text"></div>
        <div class="button"></div>
      </div>
    </div>
    <div class="card">
      <img src="https://imgplaceholder.com/500x300/transparent/ddd/ion-image" alt="">
      <div class="content">
        <div class="headline"></div>
        <div class="text"></div>
        <div class="text"></div>
        <div class="button"></div>
      </div>
    </div>
    <div class="card">
      <img src="https://imgplaceholder.com/500x300/transparent/ddd/ion-image" alt="">
      <div class="content">
        <div class="headline"></div>
        <div class="text"></div>
        <div class="text"></div>
        <div class="button"></div>
      </div>
    </div>
  </section>
  
  <section class="contentbox">
    <div class="headline"></div>
    <div class="text"></div>
    <div class="text"></div>
    <div class="text"></div>
    <div class="text"></div>
    <div class="text"></div>
    <div class="text"></div>
    <div class="text"></div>
    <div class="text"></div>
    <div class="text"></div>
    <div class="button"></div>
  </section>
  
</div>
</div>
  
<footer>
  <div class="content">
  <div class="logo"></div>
  <nav>
    <ul>
      <li></li>
      <li></li>
      <li></li>
    </ul>
  </nav>
  </div>
</footer>
  
</body>
!

CSS 

              
                \:root
  --clr1: #ddd
  --clr2: #efefef
  --clr3: #333
  --clr4: tomato
  --border-radius: 0px
  --text-radius: 0em

body
  *, :after, :before
    box-sizing: border-box
  background: var(--clr1)
  padding: 50px 0 0 0
  margin: 0 10px

.transparent
  background: transparent !important

.wrap
  max-width: 960px
  min-width: 360px
  margin: 0 auto
  position: relative
  &.sticky
    margin-top: 150px
    /* set height from header

.fluid .wrap
  max-width: 100% !important

header
  background: var(--clr2)
  padding: 50px
  width: 100%
  border-radius: var(--border-radius)
  position: relative
  z-index: 99

.wrap.sticky header
  background: var(--clr2)
  padding: 50px
  position: fixed
  top: 0px
  max-width: 960px
  width: calc(100% - 20px)
  min-width: 360px
  border-radius: 0px 0px var(--border-radius) var(--border-radius)

.fluid .wrap.sticky header
  max-width: 100% !important

header
  .logo
    background: var(--clr4)
    width: 50px
    height: 50px
    border-radius: var(--text-radius)
  nav
    position: absolute
    right: 0
    top: 50%
    transform: translate(-50px, -50%)
    ul li
      display: inline-block
      list-style: none
      width: 60px
      height: 10px
      background: var(--clr3)
      border-radius: var(--text-radius)

section
  background: var(--clr2)
  padding: 100px 50px
  width: 100%
  border-radius: var(--border-radius)
  position: relative
  margin: 10px 0 0 0
  .headline
    display: block
    margin: 0 auto
    list-style: none
    max-width: 260px
    height: 30px
    background: var(--clr3)
    border-radius: var(--text-radius)
  .text
    display: block
    margin: 10px auto
    max-width: 500px
    height: 14px
    background: var(--clr3)
    border-radius: var(--text-radius)
  .button
    display: block
    margin: 20px auto 0 auto
    max-width: 120px
    height: 35px
    background: var(--clr4)
    border-radius: var(--text-radius)
  &.contentbox
    .headline
      margin: 10px 0 !important
      max-width: 65%
    .text
      margin: 10px 0 !important
      max-width: 100%
    .button
      margin: 10px 0 !important
  &.cards
    padding: 0px
    background: transparent
    display: table
    .card
      background: var(--clr2)
      width: calc(33.6% - 10px)
      margin: 0 5px
      border-radius: var(--border-radius)
      display: inline-block
      &:first-child
        margin: 0 5px 0 0
      &:last-child
        margin: 0 0 0 5px
      .content
        padding: 40px
      img
        width: 100%
        height: auto
        border-radius: var(--border-radius) var(--border-radius) 0px 0px

footer
  background: var(--clr3)
  padding: 50px
  width: 100%
  border-radius: 0
  position: relative
  .logo
    background: var(--clr2)
    width: 50px
    height: 50px
    border-radius: var(--text-radius)
  nav
    position: absolute
    right: 0
    top: 50%
    transform: translate(-50px, -50%)
    ul li
      display: inline-block
      list-style: none
      width: 60px
      height: 10px
      background: var(--clr2)
      border-radius: var(--text-radius)

@media (max-width: 728px)
  section.cards .card
    width: 100%
    display: block
    margin: 10px 0 0 0 !important
    padding: 0

    
    
    
    
    
    

body
  margin: 0px
  padding: 0px

.wrap
  z-index: 1
  position: relative
  height: 100%
  padding: 50px 0 0 0
  background: var(--clr1)

.wrapper
  box-shadow: 0px 0px 40px rgba(0, 0, 0, 0.8)
  z-index: 1
  
footer
  position: relative
  z-index: -2
  height: 270px
  background: var(--clr4)
  .content
    position: fixed
    z-index: 1
    left: 50%
    bottom: 110px
    transform: translate(-50%, 0)
    width: 100%
    max-width: 960px
    padding: 0 50px

section
  &:last-child
    margin-bottom: 100px
  
  
@keyframes bounce
  0%, 20%, 50%, 80%, 100%
    -moz-transform: translateY(0)
    -ms-transform: translateY(0)
    -webkit-transform: translateY(0)
    transform: translateY(0)

  40%
    -moz-transform: translateY(-30px)
    -ms-transform: translateY(-30px)
    -webkit-transform: translateY(-30px)
    transform: translateY(-30px)

  60%
    -moz-transform: translateY(-15px)
    -ms-transform: translateY(-15px)
    -webkit-transform: translateY(-15px)
    transform: translateY(-15px)


.arrow
  position: fixed
  bottom: 50px
  left: 50%
  cursor: pointer
  margin-left: -20px
  width: 20px
  height: 20px
  padding: 20px
  z-index: 99
  background-color: var(--clr4)
  border-radius: 50em
  background-image: url(data:image/svg+xml;base64,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)
  background-size: 20px 15px
  background-repeat: no-repeat
  background-position: center

.bounce
  -moz-animation: bounce 2s infinite
  -webkit-animation: bounce 2s infinite
  animation: bounce 2s infinite
!

JS 

              
                  $(window).on('scroll', function() {

    if ($(window).scrollTop() + $(window).height() > $('.wrapper').outerHeight()) {
      $('.arrow').hide();
    } else {
      $('.arrow').show();
    }
  });


$('.arrow').click(function(){
   $("html").animate({ scrollTop: $('html').prop("scrollHeight")}, 1200);
});
!
999px

Console