Interstitial banner

marianp7 · March 6, 2016

Good day all! I am supposed to create an interstitial banner working on multiple resolution (from as small as 320x350 to large - 1242x2208) in html5/css3/js. Could you please recommend a best/clean method on how to do this? I am quite new to html5. Many thanks in advance.

Tathagata · December 8, 2023

Creating a responsive interstitial banner that works across various resolutions involves using a combination of HTML5, CSS3, and JavaScript. Here's a step-by-step guide to help you achieve this:
1. HTML Structure:

<!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="styles.css">
    <title>Interstitial Banner</title>
</head>
<body>
    <div id="banner-container">
        <div id="banner-content">
            <!-- Your banner content goes here -->
            <p>This is your banner content.</p>
        </div>
        <button id="close-button">Close</button>
    </div>
    <script src="script.js"></script>
</body>
</html>

2. CSS Styles (styles.css):

body {
    margin: 0;
    font-family: 'Arial', sans-serif;
}

#banner-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    display: none; /* Initially hide the banner */
}

#banner-content {
    max-width: 90%; /* Adjust as needed */
    padding: 20px;
    background: #fff;
    border-radius: 10px;
    text-align: center;
}

#close-button {
    background: #333;
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 10px;
}

3. JavaScript (script.js):

document.addEventListener('DOMContentLoaded', function() {
    // Get references to the banner container and close button
    var bannerContainer = document.getElementById('banner-container');
    var closeButton = document.getElementById('close-button');

    // Show the banner
    bannerContainer.style.display = 'flex';

    // Close the banner when the close button is clicked
    closeButton.addEventListener('click', function() {
        bannerContainer.style.display = 'none';
    });

    // You can add additional logic or animations as needed
});

4. Making It Responsive:

Media Queries: Use media queries in your CSS to adjust styles based on different screen sizes.

/* Example media query for small screens */
@media screen and (max-width: 600px) {
    #banner-content {
        max-width: 80%;
    }
}

Viewport Units: Use viewport units (vw, vh) for font sizes, padding, and margins to make them responsive to the screen size.

#banner-content {
    font-size: 2vw;
    padding: 2vw;
    margin: 2vw;
}

Flexbox/Grid: Use flexible box or grid layout to ensure proper alignment on different screen sizes.

This is a basic template, and you can customize it further based on your specific requirements. Adjust the styles, content, and responsive breakpoints according to your needs.
If you still having some issues you can always contact some game monetization platform
Thanks.

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