Глючная страница 404 с помехами на CSS3 и HTML5
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>404 - Такой страницы не существует</title> <style type="text/css"> * { margin: 0; padding: 0; } html { height: 100%; overflow: hidden; } canvas { z-index: 1; position: absolute; left: 0; top: 0; width: 100%; height: 100%; } .caps { z-index: 2; position: absolute; left: 0; top: 0; width: 100%; height: 100%; opacity: 0; animation: as 8s linear infinite; } .caps img { display: block; width: 100%; height: 100%; } @keyframes as { 0% { opacity: 0; } 10% { opacity: .3; } 20% { opacity: .1; } 30% { opacity: .5; } 40% { opacity: 0; } 50% { opacity: .8; } 55% { opacity: 0; } 55% { opacity: 0; } } .frame { z-index: 3; position: absolute; left: 0; top: 0; width: 100%; height: 100%; background: -moz-radial-gradient(center, ellipse cover, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 19%, rgba(0, 0, 0, 0.9) 100%); /* FF3.6+ */ background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, rgba(0, 0, 0, 0)), color-stop(19%, rgba(0, 0, 0, 0)), color-stop(100%, rgba(0, 0, 0, 0.9))); /* Chrome,Safari4+ */ background: -webkit-radial-gradient(center, ellipse cover, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 19%, rgba(0, 0, 0, 0.9) 100%); /* Chrome10+,Safari5.1+ */ background: -o-radial-gradient(center, ellipse cover, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 19%, rgba(0, 0, 0, 0.9) 100%); /* Opera 12+ */ background: -ms-radial-gradient(center, ellipse cover, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 19%, rgba(0, 0, 0, 0.9) 100%); /* IE10+ */ background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 19%, rgba(0, 0, 0, 0.9) 100%); /* W3C */ filter: progid: DXImageTransform.Microsoft.gradient(startColorstr='#00000000', endColorstr='#e6000000', GradientType=1); /* IE6-9 fallback on horizontal gradient */ } .frame div { position: absolute; left: 0; top: -20%; width: 100%; height: 20%; background-color: rgba(0, 0, 0, .12); box-shadow: 0 0 10px rgba(0, 0, 0, .3); animation: asd 12s linear infinite; } .frame div:nth-child(1) { animation-delay: 0; } .frame div:nth-child(2) { animation-delay: 4s; } .frame div:nth-child(3) { animation-delay: 8s; } @keyframes asd { 0% { top: -20%; } 100% { top: 100%; } } h1 { z-index: 3; position: absolute; font: bold 200px/200px Arial, sans-serif; left: 50%; top: 50%; margin-top: -100px; width: 100%; margin-left: -50%; height: 200px; text-align: center; color: transparent; text-shadow: 0 0 30px rgba(0, 0, 0, .5); animation: asdd 2s linear infinite; } @keyframes asdd { 0% { text-shadow: 0 0 30px rgba(0, 0, 0, .5); } 33% { text-shadow: 0 0 10px rgba(0, 0, 0, .4); } 66% { text-shadow: 0 0 20px rgba(0, 0, 0, .2); } 100% { text-shadow: 0 0 40px rgba(0, 0, 0, .8); } } </style> </head> <body> <h1>404</h1> <div class="frame"> <div></div> <div></div> <div></div> </div> <canvas id="canvas"></canvas> <script type="text/javascript"> // js source http://codepen.io/moklick/pen/zKleC var Application = (function() { var canvas; var ctx; var imgData; var pix; var WIDTH; var HEIGHT; var flickerInterval; var init = function() { canvas = document.getElementById('canvas'); ctx = canvas.getContext('2d'); canvas.width = WIDTH = 700; canvas.height = HEIGHT = 500; ctx.fillStyle = 'white'; ctx.fillRect(0, 0, WIDTH, HEIGHT); ctx.fill(); imgData = ctx.getImageData(0, 0, WIDTH, HEIGHT); pix = imgData.data; flickerInterval = setInterval(flickering, 30); }; var flickering = function() { for (var i = 0; i < pix.length; i += 4) { var color = (Math.random() * 255) + 50; pix[i] = color; pix[i + 1] = color; pix[i + 2] = color; } ctx.putImageData(imgData, 0, 0); }; return { init: init }; }()); Application.init(); </script> </body> </html> |