Download e-book for kindle: Designing for Performance: Weighing Aesthetics and Speed by Lara Callender Hogan

By Lara Callender Hogan

ISBN-10: 1491903724

ISBN-13: 9781491903728

As an internet dressmaker, you come upon tricky offerings by way of weighing aesthetics and function. solid content material, format, photographs, and interactivity are crucial for attractive your viewers, and every of those parts has a massive effect on web page load time and the end-user adventure. during this sensible ebook, Laura Hogan is helping you strategy tasks with web page velocity in brain, displaying you the way to check and benchmark which layout offerings are so much critical.

To start, all you would like are simple HTML and CSS abilities and Photoshop experience.

Topics include:
•The impression of web page load time in your web site, model, and users
•Page velocity fundamentals: how browsers retrieve and render content
•Best practices for optimizing and loading images
•How to scrub up HTML and CSS, and optimize net fonts
•Mobile-first layout with functionality ambitions by means of breakpoint
•Using instruments to degree functionality as your website evolves
•Methods for shaping an organization's functionality culture

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Extra resources for Designing for Performance: Weighing Aesthetics and Speed

Sample text

Org/wiki/JPEG_2000) are further optimized for performance. As they gain traction with browsers and image creation software, we may have more opportunities to use these newer formats and further optimize our sites’ images for page speed and perceived performance. ADDITIONAL COMPRESSION Before you export an image, make sure that you are exporting it only at the maximum pixel width and height that you need for the image. Serving an image that is larger than necessary and scaling it down within an image tag will negatively impact your page load time, as you are forcing the user to download more bytes than needed.

The Basics of Page Speed 15 Naturally, the larger the piece of requested content is, the longer it will take to download, be processed by the browser, and be displayed on a page. Also, the more independent pieces of content are needed to render the page, the more time it will take for the page to fully load. This is why we will aim to optimize both the size and number of image, CSS, and JavaScript files that are required for your site to load. , collection of images) to cut down on the number of requests that the browser needs to make (we’ll cover this technique in “Sprites”).

As you compare the images exported at quality 25, 50, 75, and 100, notice that the lower qualities have more artifacting around the edges of high contrast. | 3. Optimizing Images 29 Quality: 25 Quality: 50 Quality: 75 Quality: 100 Figure 3-2. In this comparison of Photoshop’s Save for Web export quality, the lower-quality JPEG images have more artifacting around edges of high contrast, such as the green background surrounding the top white leaves. Why Use “Save for Web”? In Photoshop, you have two main ways to generate an image: the Save for Web tool, and Save As.

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Designing for Performance: Weighing Aesthetics and Speed by Lara Callender Hogan

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