<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <link rel="stylesheet" href="css/preloarder.css"> <title>Preloarder</title> </head> <body class="hidden"> <div class="centrado" id="onload"> <div class="lds-roller"> <div></div> <div></div> <div></div> <div></div> <div></div> <div></div> <div></div> <div></div> </div> </div> <img src="img/k.png" height="100%" width="90%"> <script src="js/preloarder.js"></script> <script src="https://code.jquery.com/jquery-3.5.1.min.js"></script> </body> </html>
.centrado { height: 100vh; background:#1F2430; display: flex; justify-content: center; align-items: center; } .hidden{ overflow:hidden; } .lds-roller { display: inline-block; position: relative; width: 80px; height: 80px; } .lds-roller div { animation: lds-roller 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite; transform-origin: 40px 40px; } .lds-roller div:after { content: " "; display: block; position: absolute; width: 7px; height: 7px; border-radius: 50%; background: #fff; margin: -4px 0 0 -4px; } .lds-roller div:nth-child(1) { animation-delay: -0.036s; } .lds-roller div:nth-child(1):after { top: 63px; left: 63px; } .lds-roller div:nth-child(2) { animation-delay: -0.072s; } .lds-roller div:nth-child(2):after { top: 68px; left: 56px; } .lds-roller div:nth-child(3) { animation-delay: -0.108s; } .lds-roller div:nth-child(3):after { top: 71px; left: 48px; } .lds-roller div:nth-child(4) { animation-delay: -0.144s; } .lds-roller div:nth-child(4):after { top: 72px; left: 40px; } .lds-roller div:nth-child(5) { animation-delay: -0.18s; } .lds-roller div:nth-child(5):after { top: 71px; left: 32px; } .lds-roller div:nth-child(6) { animation-delay: -0.216s; } .lds-roller div:nth-child(6):after { top: 68px; left: 24px; } .lds-roller div:nth-child(7) { animation-delay: -0.252s; } .lds-roller div:nth-child(7):after { top: 63px; left: 17px; } .lds-roller div:nth-child(8) { animation-delay: -0.288s; } .lds-roller div:nth-child(8):after { top: 56px; left: 12px; } @keyframes lds-roller { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
window.onload = function(){ $('#onload').fadeOut(); $('body').removeClass('hidden'); }
El código fuente de este ejemplo lo puedes descargar en:
https://github.com/NeisserMS/Instagram-/tree/master/Preloarder
Escoge tu preloarder a tu gusto en:
https://loading.io/css/
https://projects.lukehaas.me/css-loaders/
https://www.w3schools.com/howto/howto_css_loader.asp