Method #1
To set the font size for mobile phone browsers using HTML, you can use the viewport meta tag and CSS media queries. Here’s an example:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
/* Styles for screens smaller than 480px */
@media (max-width: 480px) {
body {
font-size: 14px;
}
}
</style>
</head>
<body>
<h1>Hello, world!</h1>
<p>This is some text.</p>
</body>
</html>In this code, we’re using the viewport meta tag to set the width of the viewport to the device width and the initial zoom level to 1.0. This ensures that the web page is rendered at the correct size on mobile devices.
We’re also using a CSS media query to set the font size to 14 pixels for screens with a maximum width of 480 pixels. This will ensure that the font size is appropriate for smaller screens.
You can adjust the values in the viewport meta tag and the CSS media query to suit your specific needs. Note that it’s generally recommended to use responsive design techniques and CSS media queries to style your website for different screen sizes, rather than relying on fixed font sizes.
Method #2
To set the font size for mobile phone browsers using PHP, you can add a CSS style to your HTML document that targets the @media rule. Here’s another example:
<?php
// Detect if the request is coming from a mobile device
if(preg_match('/(iphone|ipod|android|blackberry|webos)/i', strtolower($_SERVER['HTTP_USER_AGENT']))) {
echo "<style>
@media (max-width: 480px) {
body {
font-size: 14px;
}
}
</style>";
}
?>This code detects if the user is accessing your website from a mobile device by checking the $_SERVER['HTTP_USER_AGENT'] variable against a regular expression that matches common mobile device user agents. If a match is found, it outputs a CSS style block that sets the font size for screens with a maximum width of 480 pixels to 14 pixels.
You can modify this code to target different screen sizes or font sizes based on your specific needs. Note that it’s generally recommended to use responsive design techniques and CSS media queries to style your website for different screen sizes, rather than relying on server-side detection of user agents.