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Custom 404 Page Generator
Page Title: Message: Background Color: Text Color: Generate PageGenerated 404 Page:
create a simple custom 404 page generator
You can create a simple custom 404 page generator using HTML, CSS, and JavaScript.
Below is a code snippet for a single-page application that allows users to generate a custom 404 error page.
HTML Code
HTML:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>404 Page Generator</title> <link rel="stylesheet" href="styles.css"> </head> <body> <div class="container"> <h1>Custom 404 Page Generator</h1> <form id="generatorForm"> <label for="title">Page Title:</label> <input type="text" id="title" name="title" required> <label for="message">Message:</label> <textarea id="message" name="message" rows="4" required></textarea> <label for="backgroundColor">Background Color:</label> <input type="color" id="backgroundColor" name="backgroundColor" value="#ffffff"> <label for="textColor">Text Color:</label> <input type="color" id="textColor" name="textColor" value="#000000"> <button type="submit">Generate Page</button> </form> <h2>Generated 404 Page:</h2> <iframe id="preview" srcdoc="" frameborder="0"></iframe> </div> <script src="script.js"></script> </body> </html>
CSS (styles.css)
CSS:body { font-family: Arial, sans-serif; margin: 0; padding: 0; background-color: #f4f4f4; } .container { width: 80%; margin: 0 auto; padding: 20px; background-color: #fff; box-shadow: 0 0 10px rgba(0,0,0,0.1); } h1 { text-align: center; } form { display: flex; flex-direction: column; gap: 10px; } label { font-weight: bold; } input, textarea, button { width: 100%; padding: 8px; margin-top: 5px; } button { background-color: #007BFF; color: white; border: none; cursor: pointer; } button:hover { background-color: #0056b3; } iframe { width: 100%; height: 400px; border: 1px solid #ddd; margin-top: 20px; }
JavaScript (script.js)
JavaScript:document.getElementById('generatorForm').addEventListener('submit', function(event) { event.preventDefault(); const title = document.getElementById('title').value; const message = document.getElementById('message').value; const backgroundColor = document.getElementById('backgroundColor').value; const textColor = document.getElementById('textColor').value; const htmlContent = ` <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>${title}</title> <style> body { display: flex; justify-content: center; align-items: center; height: 100vh; margin: 0; background-color: ${backgroundColor}; color: ${textColor}; text-align: center; } h1 { font-size: 3rem; } p { font-size: 1.5rem; } </style> </head> <body> <h1>${title}</h1> <p>${message}</p> </body> </html> `; const iframe = document.getElementById('preview'); iframe.srcdoc = htmlContent; });
Instructions To Add Code
1. Save the HTML, CSS, and JavaScript code in separate files named
index.html
, styles.css
, and script.js
respectively.2. Open
index.html
in a web browser.3. Fill out the form and click "Generate Page" to see a preview of your custom 404 page.
This code will create a simple form for generating a custom 404 error page and display a preview of the generated page inside an iframe.
Adjust the CSS and JavaScript as needed to fit your requirements.
Custom 404 Page Generator
Page Title: Error Message: Button Text: Button Link: Generate Code
Generated HTML Code:
/g, ">") .replace(/"/g, """) .replace(/'/g, "'"); } function generateCode() { const title = document.getElementById('title').value; const message = document.getElementById('message').value; const buttonText = document.getElementById('buttonText').value; const buttonLink = document.getElementById('buttonLink').value; const code = ` DOCTYPE html>${escapeHtml(title)}
${escapeHtml(message)}
${escapeHtml(buttonText)}
`.trim(); document.getElementById('code').value = code; }
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Custom 404 Page Generator</title>
<style>
body {
font-family: Arial, sans-serif;
margin: 20px;
padding: 0;
}
.container {
max-width: 800px;
margin: 0 auto;
padding: 20px;
background: #f4f4f4;
border-radius: 8px;
}
h1 {
font-size: 24px;
margin-bottom: 10px;
}
input, textarea, button {
width: 100%;
margin: 10px 0;
padding: 10px;
border-radius: 5px;
border: 1px solid #ddd;
}
button {
background-color: #007bff;
color: white;
border: none;
cursor: pointer;
}
button:hover {
background-color: #0056b3;
}
.result {
margin-top: 20px;
}
.result textarea {
height: 200px;
white-space: pre-wrap;
word-wrap: break-word;
}
</style>
</head>
<body>
<div class="container">
<h1>Custom 404 Page Generator</h1>
<label for="title">Page Title:</label>
<input type="text" id="title" placeholder="404 - Page Not Found">
<label for="message">Error Message:</label>
<textarea id="message" rows="4" placeholder="Sorry, the page you’re looking for doesn’t exist."></textarea>
<label for="buttonText">Button Text:</label>
<input type="text" id="buttonText" placeholder="Go to Homepage">
<label for="buttonLink">Button Link:</label>
<input type="text" id="buttonLink" placeholder="/">
<button onclick="generateCode()">Generate Code</button>
<div class="result">
<h2>Generated HTML Code:</h2>
<textarea id="code" readonly></textarea>
</div>
</div>
<script>
function escapeHtml(unsafe) {
return unsafe
.replace(/&/g, "&")
.replace(/</g, "<")
.replace(/>/g, ">")
.replace(/"/g, """)
.replace(/'/g, "'");
}
function generateCode() {
const title = document.getElementById('title').value;
const message = document.getElementById('message').value;
const buttonText = document.getElementById('buttonText').value;
const buttonLink = document.getElementById('buttonLink').value;
const code = `
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>${escapeHtml(title)}</title>
<style>
body {
font-family: Arial, sans-serif;
text-align: center;
background-color: #f4f4f4;
color: #333;
padding: 50px;
}
.container {
max-width: 600px;
margin: auto;
padding: 20px;
background: #fff;
border-radius: 8px;
box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
h1 {
font-size: 100px;
margin: 0;
}
p {
font-size: 18px;
}
.btn {
display: inline-block;
margin-top: 20px;
padding: 10px 20px;
font-size: 16px;
color: #fff;
background-color: #007bff;
text-decoration: none;
border-radius: 5px;
}
.btn:hover {
background-color: #0056b3;
}
</style>
</head>
<body>
<div class="container">
<h1>${escapeHtml(title)}</h1>
<p>${escapeHtml(message)}</p>
<a href="${escapeHtml(buttonLink)}" class="btn">${escapeHtml(buttonText)}</a>
</div>
</body>
</html>
`.trim();
document.getElementById('code').value = code;
}
</script>
</body>
</html>
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