This content originally appeared on DEV Community and was authored by Clément Gaudinière
Hello, today we will learn how to add a loader to our website ! Loaders have been used for a long time, it has been proven that users are more patient when a loader is present on a website. That's why I propose to set up a loader that will disappear when the whole page is loaded.
First step
First we will set up our HTML :
The
<div>tag with the idcontainerLoaderwill hold the loader (as the name suggests ?).While the
<div>tag having the classcontainerText, will allow to contain all the content of the page, both text and images
<body>
<div id="containerLoader" class="containerLoader">
<div class="lds-ripple">
<div></div>
<div></div>
</div>
</div>
<div class="containerText">
<h1>I'm the title</h1>
<p>Your text here</p>
</div>
</body>
Second step
Now we set up our loader, with some CSS.
.lds-ripple {
display: inline-block;
position: relative;
width: 80px;
height: 80px;
}
.lds-ripple div {
position: absolute;
border: 4px solid #fff;
opacity: 1;
border-radius: 50%;
animation: lds-ripple 1s cubic-bezier(0, 0.2, 0.8, 1) infinite;
}
.lds-ripple div:nth-child(2) {
animation-delay: -0.5s;
}
@keyframes lds-ripple {
0% {
top: 36px;
left: 36px;
width: 0;
height: 0;
opacity: 1;
}
100% {
top: 0px;
left: 0px;
width: 72px;
height: 72px;
opacity: 0;
}
}
You can see the result of the loader animation below :
Third step
Now we will style our page :
@import url("https://fonts.googleapis.com/css2?family=Roboto&display=swap");
body {
background: #252525;
color: white;
font-family: "Roboto", sans-serif;
margin: 0 5% 0 5%;
}
.containerText {
display: block;
margin: 0 auto;
width: 900px;
max-width: 90%;
}
.containerText p {
text-align: justify;
}
.containerText h1 {
text-align: center;
}
/* The disappearing animation of the loader */
@keyframes hide {
from {
opacity: 1;
}
to {
opacity: 0;
display: none;
}
}
.hide {
animation: hide 1s;
animation-iteration-count: 1;
}
/* The loader container */
#containerLoader {
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 100%;
height: 100%;
display: block;
background: black;
}
/* This last piece of code is purely aesthetic and optional. */
::-moz-selection {
background: rgba(255, 255, 255, 0.22);
}
::selection {
background: rgba(255, 255, 255, 0.22);
}
Last step
Finally, we set up our javascript so that the loader disappears once the page is ready to be displayed. Good point for some: we won't use jQuery.
document.onreadystatechange = () => {
if (document.readyState === 'complete') {
document.getElementById("containerLoader").classList.add('hide');
setTimeout(function(){
document.getElementById("containerLoader").style.display = 'none';
}, 1000);
}
};
The result
You can see below the final result of our loader. If the animation is too fast, you can click on the "Rerun" button to restart the animation.
I hope this tutorial will be useful to you, don't hesitate to use it on your website if you wish and to give me your opinion in comments. ?
This content originally appeared on DEV Community and was authored by Clément Gaudinière
Clément Gaudinière | Sciencx (2021-05-12T08:35:28+00:00) Add a loader to your website. Retrieved from https://www.scien.cx/2021/05/12/add-a-loader-to-your-website/
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