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Web designers are starting to discover that 8-bit PNG files can be used to achieve semi-transparency (alpha transparency) that will gracefully degrade in IE6 and be much more compact than the same image saved as a PNG-24. Most of the posts around the web focus on using Adobe Fireworks to achieve semi-transparency, but what about the rest of us that don’t use Fireworks? Today, I’ll demonstrate an a
Reduce the size of the above-the-fold content Stay organized with collections Save and categorize content based on your preferences. This rule triggers when PageSpeed Insights detects that additional network round trips are required to render the above the fold content of the page. Overview If the amount of data required exceeds the initial congestion window (typically 14.6kB compressed), it will
Tutorials There are many ways to make websites run faster. In this section, you can discover performance best practices that real web professionals employ in their everyday work. These practices have improved the user experience for millions of users and we hope they are useful for other web developers. Using every CSS declaration only once is an effective way to reduce file size of style sheets.
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