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Add a CSS preloader animation to your website

November 13, 2018

Your website may take a little more time to load all the contents regardless of how lightweight or fast your pages are. There are other contributors to this factor like your site visitors’ poor internet connection. Having a complete blank webpage on screen while waiting for the website to load is a boring experience for the visitors. This is where the CSS preloader comes into play.

With many pages on your site, you might be thinking what to do to add a preloader. Hakuna matata. Today, we will tell you how you can do this in the quickest possible way.

How to add CSS preloader to your site

Adding a CSS preloader to your website is pretty simple. It is just about a few lines of code. Even a non coder can do this just by copying and pasting these codes. Let’s see how it is done.

(Your desired preloader animation may be different but the process to do this is almost alike. We are giving you an example on how you can make changes to bring your desired preloader animation on your site.)

1. Add the following code snippet to your index.html file right below the body tag.

<div class="pre-loader">
<div class="sk-fading-circle">
<div class="sk-circle1 sk-circle"></div>
<div class="sk-circle2 sk-circle"></div>
<div class="sk-circle3 sk-circle"></div>
<div class="sk-circle4 sk-circle"></div>
<div class="sk-circle5 sk-circle"></div>
<div class="sk-circle6 sk-circle"></div>
<div class="sk-circle7 sk-circle"></div>
<div class="sk-circle8 sk-circle"></div>
<div class="sk-circle9 sk-circle"></div>
<div class="sk-circle10 sk-circle"></div>
<div class="sk-circle11 sk-circle"></div>
<div class="sk-circle12 sk-circle"></div>
</div>
</div>

2. Open your CSS file and add these CSS codes there.

.pre-loader {
background-color: #2c3e50;
position: fixed;
height: 100%;
width: 100%;
left: 0;
top: 0;
}
.sk-fading-circle {
margin: 100px auto;
width: 40px;
height: 40px;
position: relative;
}
.sk-fading-circle .sk-circle {
width: 100%;
height: 100%;
position: absolute;
left: 0;
top: 0;
}
.sk-fading-circle .sk-circle:before {
content: '';
display: block;
margin: 0 auto;
width: 15%;
height: 15%;
background-color: #fff;
border-radius: 100%;
-webkit-animation: sk-circleFadeDelay 1.2s infinite ease-in-out both;
animation: sk-circleFadeDelay 1.2s infinite ease-in-out both;
}
.sk-fading-circle .sk-circle2 {
-webkit-transform: rotate(30deg);
-ms-transform: rotate(30deg);
transform: rotate(30deg);
}
.sk-fading-circle .sk-circle3 {
-webkit-transform: rotate(60deg);
-ms-transform: rotate(60deg);
transform: rotate(60deg);
}
.sk-fading-circle .sk-circle4 {
-webkit-transform: rotate(90deg);
-ms-transform: rotate(90deg);
transform: rotate(90deg);
}
.sk-fading-circle .sk-circle5 {
-webkit-transform: rotate(120deg);
-ms-transform: rotate(120deg);
transform: rotate(120deg);
}
.sk-fading-circle .sk-circle6 {
-webkit-transform: rotate(150deg);
-ms-transform: rotate(150deg);
transform: rotate(150deg);
}
.sk-fading-circle .sk-circle7 {
-webkit-transform: rotate(180deg);
-ms-transform: rotate(180deg);
transform: rotate(180deg);
}
.sk-fading-circle .sk-circle8 {
-webkit-transform: rotate(210deg);
-ms-transform: rotate(210deg);
transform: rotate(210deg);
}
.sk-fading-circle .sk-circle9 {
-webkit-transform: rotate(240deg);
-ms-transform: rotate(240deg);
transform: rotate(240deg);
}
.sk-fading-circle .sk-circle10 {
-webkit-transform: rotate(270deg);
-ms-transform: rotate(270deg);
transform: rotate(270deg);
}
.sk-fading-circle .sk-circle11 {
-webkit-transform: rotate(300deg);
-ms-transform: rotate(300deg);
transform: rotate(300deg);
}
.sk-fading-circle .sk-circle12 {
-webkit-transform: rotate(330deg);
-ms-transform: rotate(330deg);
transform: rotate(330deg);
}
.sk-fading-circle .sk-circle2:before {
-webkit-animation-delay: -1.1s;
animation-delay: -1.1s;
}
.sk-fading-circle .sk-circle3:before {
-webkit-animation-delay: -1s;
animation-delay: -1s;
}
.sk-fading-circle .sk-circle4:before {
-webkit-animation-delay: -0.9s;
animation-delay: -0.9s;
}
.sk-fading-circle .sk-circle5:before {
-webkit-animation-delay: -0.8s;
animation-delay: -0.8s;
}
.sk-fading-circle .sk-circle6:before {
-webkit-animation-delay: -0.7s;
animation-delay: -0.7s;
}
.sk-fading-circle .sk-circle7:before {
-webkit-animation-delay: -0.6s;
animation-delay: -0.6s;
}
.sk-fading-circle .sk-circle8:before {
-webkit-animation-delay: -0.5s;
animation-delay: -0.5s;
}
.sk-fading-circle .sk-circle9:before {
-webkit-animation-delay: -0.4s;
animation-delay: -0.4s;
}
.sk-fading-circle .sk-circle10:before {
-webkit-animation-delay: -0.3s;
animation-delay: -0.3s;
}
.sk-fading-circle .sk-circle11:before {
-webkit-animation-delay: -0.2s;
animation-delay: -0.2s;
}
.sk-fading-circle .sk-circle12:before {
-webkit-animation-delay: -0.1s;
animation-delay: -0.1s;
}
@-webkit-keyframes sk-circleFadeDelay {
0%, 39%, 100% {
opacity: 0;
}
40% {
opacity: 1;
}
}
@keyframes sk-circleFadeDelay {
0%, 39%, 100% {
opacity: 0;
}
40% {
opacity: 1;
}
}

3. Add the following piece of jQuery code to your JS file.

(function($){
'use strict';
$(window).on('load', function () {
if ($(".pre-loader").length > 0)
{
$(".pre-loader").fadeOut("slow");
}
});
})(jQuery)

If you have followed each step accurately your preloader will start working immediately. Visit your website to check.

Possible online sources to get such CSS codes from:

We thank SpinKit for some of the codes

Source: Themehunt

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