TAILIEUCHUNG - Learning Web Design Third Edition- P6

Learning Web Design Third Edition- P6:Everything you need to know to create professional web sites is right here. Learning Web Design starts from the beginning defining how the Web and web pages work and builds from there. By the end of the book, you'll have the skills to create multi-column CSS layouts with optimized graphic files, and you'll know how to get your pages up on the Web. | User Preferences Figure 3-3. A document can look very different as a result of the user s browser settings. Simply by changing preference settings in the browser anyone can affect the appearance and functionality of web pages including yours in the following ways. Change the font face and size. The text zoom feature in modern browsers makes it easy to make text larger or smaller on the fly. Users might also change the font face in addition to the size using font settings in the browser Preferences. I ve seen CAD designers with super-high monitor resolution set their default type at 24 points to make text easily readable from a comfortable distance. I ve looked over the shoulder of a kid who set his browser to render all text in a graffiti font just because he could. You simply don t know how your text will look on the other end. Figure 3-3 shows how the Jen s Kitchen page might look with different user preferences. Change the background and text colors. These days users are less likely to alter the color settings in their browsers just for fun as they did when all web pages were comprised of black text on gray backgrounds. However some users with impaired vision may use the browser preferences to ensure that all text is dark on a light background with plenty of contrast. Ignore style sheets or apply their own. Savvy users with specific needs may create their own style sheets that apply to all the sites they view. Others may choose to simply turn style sheets off for whatever reason. Turn images off. Users can opt to turn off the graphics completely. You d be surprised at how many people do this to alleviate the wait for bandwidth-hogging graphics over slow modem connections. Make sure your pages are at least functional with the graphics turned off. Although adding alternative text for each image helps and it s required in HTML and XHTML it is not visible to 100 of your users. Figure 3-4 shows how a missing image with alternative text looks on several browsers

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