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HTML

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About the <head>

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CSS

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <!DOCTYPE html>
<html>

<head>
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="content-type" content="text/html; charset=UTF-8" />

  <!-- <link rel="stylesheet" type="text/css" href="css/loadingbarpreloader.css">  -->
  <!-- <link rel="stylesheet" type="text/css" href="../css/gradientloadingbar.css"> -->
  <link rel="stylesheet" type="text/css" href="../css/gradientfillbar.css">

   <link rel="stylesheet" type="text/css" href="css/zoomdots.css">
  <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
    integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
    <link href="https://fonts.googleapis.com/css?family=Quicksand:700&display=swap" rel="stylesheet">
</head>

<body>
  <div class="content">
    <p class="thxbasti">Danke Basti !!</p><br>
    <p class="thxbasti">:)</p>
  
  </div>
<!-- Preloader START-->
  <div class="preloadercontainer ">

    <!-- <div class="logocenter">
      <span class="logo"></span>
    </div> -->
<div class="loadingbarcenter">
        <div class="loadingbaroverlay"></div>
        <div class="loadingbaroverlaybackground"></div>
        <div class="loadingbaroverlaybar"></div>
   <div class="loadingbar"></div>
</div>

    <div class="loadingtext">
      <h1>Loading</h1>
    </div>


  </div>
<!-- Preloader END-->


  <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
    integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous">
  </script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"
    integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous">
  </script>
  <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"
    integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous">
  </script>
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
  <script>
    $(window).on("load", function () {
      $(".preloadercontainer").delay(2222).fadeOut("slow");
    });
  </script>
</body>

</html>
!

CSS 

              
                * {
  margin: 0px;
  padding: 0px;
}

.preloadercontainer {

  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  left: 0;
  background-color: #fff;

  /* display: flex;
  justify-content: center;
  align-items: center; */
  z-index: 99999999999999;
  animation: backgrounds 2s infinite;
  animation-direction: alternate;


}
.content{
  width:100vw;
  height:150vh;
  background:black;
  color:white;
  text-align:center;

  
}

.thxbasti{
  font-size:300px;
  
}

/* Einblenden für Logo auch in der HTML Kommentar einkommentieren */
/* .logo {
  background-image: url("../img/platzhalter.png");
  background-size: 100%;
  background-repeat: no-repeat;
  width: 160px;
  height: 202px;
  animation: logo 2s infinite;
  animation-direction: alternate;





} */
.loadingtext {

  margin-top: 1%;
  color: #383833;
  font-family: 'Quicksand', sans-serif;
  font-size: 9px;
  display: flex;
  justify-content: center;
  justify-items: center;
  /* animation: loadingtext 0.8s infinite;
  animation-direction: alternate; */


}
.loadingbarcenter{
  margin-top: 25%;
  display: flex;
  justify-items: center;
  justify-content: center;
}
.loadingbaroverlay{
 position: absolute;
    width:200px;
    height:20px;
    border-radius: 20px;
    background: linear-gradient(90deg, rgba(136,8,212,1) 0%, rgba(32,196,174,1) 54%, rgba(199,20,148,1) 100%);;
    border-left: 0px solid #383838;
    z-index: 1;
  
}
.loadingbar{
  position: absolute;
  display:block;
  width:200px;
  height:20px;
  border-radius: 20px;
  background: transparent;
  border-left: 0px solid #383838;
  animation: loadingprogress 2.8s ;
  animation-iteration-count: 1;
  z-index:2;
}


@keyframes loadingbaroverlay{
  from{transform: translateX(0px);width:200px;border-radius: 20;}
  to{transform: translateX(99px);width:0px;border-radius: 0;}
}




@keyframes loadingprogress{
  0%{border-right: 200px solid rgb(70, 68, 68);}
  50%{border-right: 150px solid rgb(121, 119, 119);}
  100%{border-right: 0px solid rgb(184, 182, 182);}
}
!

JS
!
999px

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