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CSS

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HTML

              
                <!--Chapter 3 - CSS responsive loader using SVG-->
<section>
  <svg viewbox="0 0 660 300" width="100%" height="300px">
    <!-- 11 rectangles-->
    <rect width="60" height="300" x="0%" />
    <rect width="60" height="300" x="10%" />
    <rect width="60" height="300" x="20%" />
    <!--Offset each rectangle on the x axis by 10%-->
    <rect width="60" height="300" x="30%"/>
    <rect width="60" height="300" x="40%"/>
    <rect width="60" height="300" x="50%"/>
    <rect width="60" height="300" x="60%"/>
    <rect width="60" height="300" x="70%"/>
    <rect width="60" height="300" x="80%"/>
    <rect width="60" height="300" x="90%"/>
    <rect width="60" height="300" x="100%"/>
  </svg>
  <h1>Scanning channels</h1>
  <p>This may take a few minutes</p>
  <!--Progress bar-->
  <progress id="file" width="100%" value="32" max="100">32%</progress>
</section>
              
            
!

CSS

              
                body{
  background: rgb(0 28 47);
}

/*Container for the loading component*/
section{
  /*Layout*/
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  max-width: 800px;
  /*Padding and margin*/
  margin: 40px auto;
  /*Typography*/
  font: 300 100% 'Roboto', sans-serif;
  text-align: center;
  /*Color*/
  color: rgb(255 255 255);
}

/*Styling the progress bar*/
progress {
  /*Reset the browser default styling using the apperance property and set the value to none*/
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border-radius: 20px;
  height: 3vw;
  width: 100%;
  background: rgb(26 51 68);
  border: none;
}

progress::-moz-progress-bar{
  /*Border radius*/
  border-radius: 20px;
  /*Colors*/
  background: linear-gradient(to right, #0eb98f 0%,#4db3ff 100%);
}
progress::-webkit-progress-bar{
  /*Border radius*/
  border-radius: 20px;
  /*Colors*/
  background: #0eb98f;
  background: linear-gradient(to right, #0eb98f 0%,#4db3ff 100%);
}
/*Typography*/
h1{
  font-size: 4.5vw;
  /*Padding and margin*/
  margin: 40px 0 12px;
}

p{
  font-size: 2.8vw;
  /*Padding and margin*/
  margin-top: 0;
}

/*Loading bars*/
svg rect{
  /*Fill rather than background because it's an SVG graphic*/
  fill: rgb(34 184 142);
  animation: scale 2.2s infinite;
  /*To animate it from the center point use the transform-origin proprty*/
  transform-origin: center;
}

svg rect:nth-child(1){
  /*Delay the animation by 0.2s for each item*/
  animation-delay: 0;
  fill: rgb(26 159 140)
}

svg rect:nth-child(2){
  animation-delay: 200ms;
  fill: rgb(30 171 141)
}

svg rect:nth-child(3){
  animation-delay: 400ms;
  fill: rgb(32 179 142)
}

svg rect:nth-child(4){
  animation-delay: 600ms;
  fill: rgb(34 183 141)
}

svg rect:nth-child(5){
  animation-delay: 800ms;
  fill: rgb(34 184 142)
}

svg rect:nth-child(6){
  animation-delay: 1s;
  fill: rgb(33 180 141)
}

svg rect:nth-child(7){
  animation-delay: 1.2s;
  fill: rgb(30 175 142);
}

svg rect:nth-child(8){
  animation-delay: 1.4s;
  fill: rgb(28 164 141);
}

svg rect:nth-child(9){
  animation-delay: 1.6s;
  fill: rgb(23 150 139)
}

svg rect:nth-child(10){
  animation-delay: 1.8s;
  fill: rgb(18 134 136)
}

svg rect:nth-child(11){
  animation-delay: 2s;
  fill: rgb(18 134 136)
}

/*Create the keyframes, set the starting from position, then at 50% is the smallest amount of the rectangle, then return to full size*/
@keyframes scale {
  from {
    transform: scaleY(1);
  }
  50% { 
    transform: scaleY(0.2);
  }
}
              
            
!

JS

              
                
              
            
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999px

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