Bootstrap snippet. preloader page example

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You can also download the HTML, CSS, and JS code.
Tags: loader,preloader

HTML code

This is the html code used to create this bootstrap snippet, You can copy and paste the following html code inside a page with bootstrap 4.5.0 included, to get the result that you can see in the preview selection

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<div class="preloader">
    <div class="loader">
        <div class="loader-outter"></div>
        <div class="loader-inner"></div>

        <div class="indicator"> 
            <svg width="16px" height="12px">
                <polyline id="back" points="1 6 4 6 6 11 10 1 12 6 15 6"></polyline>
                <polyline id="front" points="1 6 4 6 6 11 10 1 12 6 15 6"></polyline>
            </svg>
        </div>
    </div>
</div>

CSS code

This is the css code used to create this bootstrap snippet, You can copy and paste the following css code inside a page with bootstrap 4.5.0 included, to get the result that you can see in the preview selection

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body{margin-top:20px;}
.preloader {
  position: fixed;
  left: 0;
  width: 0;
  height: 100%;
  width: 100%;
  text-align: center;
  z-index: 9999999;
  -webkit-transition: .9s;
  transition: .9s;
}

.preloader .loader {
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: inline-block;
  left: 0;
  right: 0;
  margin: 0 auto;
  top: 45%;
  -webkit-transform: translateY(-45%);
          transform: translateY(-45%);
  -webkit-transition: 0.5s;
  transition: 0.5s;
}

.preloader .loader .loader-outter {
  position: absolute;
  border: 4px solid #ffffff;
  border-left-color: transparent;
  border-bottom: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  -webkit-animation: loader-outter 1s cubic-bezier(0.42, 0.61, 0.58, 0.41) infinite;
          animation: loader-outter 1s cubic-bezier(0.42, 0.61, 0.58, 0.41) infinite;
}

.preloader .loader .loader-inner {
  position: absolute;
  border: 4px solid #ffffff;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  left: calc(40% - 21px);
  top: calc(40% - 21px);
  border-right: 0;
  border-top-color: transparent;
  -webkit-animation: loader-inner 1s cubic-bezier(0.42, 0.61, 0.58, 0.41) infinite;
          animation: loader-inner 1s cubic-bezier(0.42, 0.61, 0.58, 0.41) infinite;
}

.preloader .loader .indicator {
  position: absolute;
  right: 0;
  left: 0;
  top: 50%;
  -webkit-transform: translateY(-50%) scale(1.5);
          transform: translateY(-50%) scale(1.5);
}

.preloader .loader .indicator svg polyline {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.preloader .loader .indicator svg polyline#back {
  stroke: #ffffff;
}

.preloader .loader .indicator svg polyline#front {
  stroke: #1A76D1;
  stroke-dasharray: 12, 36;
  stroke-dashoffset: 48;
  -webkit-animation: dash 1s linear infinite;
          animation: dash 1s linear infinite;
}

.preloader::before, .preloader::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 60%;
  z-index: -1;
  background: #1A76D1;
  -webkit-transition: .9s;
  transition: .9s;
}

.preloader::after {
  left: auto;
  right: 0;
}

.preloader.preloader-deactivate {
  visibility: hidden;
}

.preloader.preloader-deactivate::after, .preloader.preloader-deactivate::before {
  width: 0;
}

.preloader.preloader-deactivate .loader {
  opacity: 0;
  visibility: hidden;
}

@-webkit-keyframes loader-outter {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}

@keyframes loader-outter {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}

@-webkit-keyframes loader-inner {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(-360deg);
            transform: rotate(-360deg);
  }
}

@keyframes loader-inner {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(-360deg);
            transform: rotate(-360deg);
  }
}

@-webkit-keyframes dash {
  62.5% {
    opacity: 0;
  }
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes dash {
  62.5% {
    opacity: 0;
  }
  to {
    stroke-dashoffset: 0;
  }
}

Javascript/Jquery code

This is the javascript code used to create this bootstrap snippet, You can copy and paste the following javascript code inside a page with bootstrap 4.5.0 included, to get the result that you can see in the preview selection

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$(window).on('load', function() {
    //for use in production please remove this setTimeOut
    setTimeout(function(){ 
        $('.preloader').addClass('preloader-deactivate');
    }, 3000);
    //uncomment this line for use this snippet in production
    //	$('.preloader').addClass('preloader-deactivate');
});
 

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Bootstrap 4.5.0

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