404 No signal

In this example below you will see how to do a 404 No signal with some HTML / CSS and Javascript

Forked from Adem ilter's Pen 404 No signal.

Thumbnail
This awesome code was written by eduardosully, you can see more from this user in the personal repository.
You can find the original code on Codepen.io
Copyright eduardosully ©
  • HTML
  • CSS
  • JavaScript
<!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">
  <title>404 No signal</title>
  
  
  
      <style>
      /* NOTE: The styles were added inline because Prefixfree needs access to your styles and they must be inlined if they are on local disk! */
      * {
    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>

    <script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>

</head>

<body>

  <h1>404</h1>
<p>Site fora do ar por tempo indeterminado</p>

<div class="frame">
    <div></div>
    <div></div>
    <div></div>
</div>

<div class="caps"><img src="http://ademilter.com/caps.png" alt=""></div>
<canvas id="canvas"></canvas>


<!--orjinal page http://ademilter.com/asdfghjkl -->
  
  

    <script  src="js/index.js"></script>




</body>

</html>

/*Downloaded from https://www.codeseek.co/eduardosully/404-no-signal-VYmQdP */
* {
    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);
    }
}

/*Downloaded from https://www.codeseek.co/eduardosully/404-no-signal-VYmQdP */
// js source https://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();

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