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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>CSS Opacity for IE8 and Lower</title> <style> p { filter: alpha(opacity=50); zoom: 1; /* Fix for IE7 */ opacity: 0.5; /* Standard Syntax */ } </style> </head> <body> <p><strong>Note:</strong> Alpha filters is Microsoft-only property to control transparency in IE8 and earlier version, however it creates invalid code in your CSS.</p> </body> </html>
