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Setting Cross Browser Opacity using CSS
The property opacity is the modern solution and works for Firefox, Safari, opera, and every version of chrome. The -moz-opacity property is the opacity property for Firefox while the -khtml-opacity property is for safari. The filter property is to give opacity like effect. Using all these values together as a fallback for modern opacity allows us to use opacity in all browsers.
Set the images
We will check the cross-browser opacity for the images. The second image above will get opaque on all browsers −
<img src="https://www.tutorialspoint.com/python/images/python.jpg" /> <img class="transparent" src="https://www.tutorialspoint.com/python/images/python.jpg" />
Opacity for the 2nd image
The opacity for the second image is set using the opacity property −
.transparent {
filter: alpha(opacity=30);
-moz-opacity: 0.3;
-khtml-opacity: 0.3;
opacity: 0.3;
}
Cross browser opacity
The -moz-opacity property is the opacity property for Firefox −
-moz-opacity: 0.3;
The -khtml-opacity property is for safari versions −
-khtml-opacity: 0.3;
Example
The following is code for having cross browser opacity using CSS −
<!DOCTYPE html>
<html>
<head>
<style>
body {
font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
img {
width: 270px;
height: 200px;
}
.transparent {
filter: alpha(opacity=30);
-moz-opacity: 0.3;
-khtml-opacity: 0.3;
opacity: 0.3;
}
</style>
</head>
<body>
<h1>Cross browser opacity</h1>
<img src="https://www.tutorialspoint.com/python/images/python.jpg" />
<img class="transparent" src="https://www.tutorialspoint.com/python/images/python.jpg" />
<h3>The second image above will get opaque on all browsers</h3>
</body>
</html>
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