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HTML normally flows from the top of the browser window down to the bottom,one headline, paragraph, or block-level element on top of another. This word-processor-like display is visually boring , but with CSS,you’re far from stuck with it. ——float.left. Slides the styled element to the left, while co 阅读全文
posted @ 2011-12-27 16:47
HelloWorld.Michael
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Three different properties of each border: color, width, and style.Color :The color can be a hexadecimal number, a keyword, or an RGB value, just like with text.Width :A border’s width is the thickness of the line used to draw the border. You can use any CSS measurement type (except percentages) or 阅读全文
posted @ 2011-12-27 15:11
HelloWorld.Michael
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When the content inside a styled tag is larger than the style’s defined width and height, some weird things happen.Fortunately, you can control what a browser should do in this situation with the overflow property. Overflow accepts four keywords that control how content that overflows the edges of a 阅读全文
posted @ 2011-12-27 15:11
HelloWorld.Michael
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To a browser, any tag is a box with something inside it—text, an image,or even other tags containing other things, as illustrated in below Figure .Surrounding the content are different properties that make up the box:padding is the space between the content and the content’s border. Padding is what 阅读全文
posted @ 2011-12-27 14:00
HelloWorld.Michael
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CSS provides a formula for determining a style’s specificity that’s based on a value assigned to the style’s selector—a tag selector, class selector, ID selector, and so on. Here’s how the system works:A tag selector is worth 1 point.A class selector is worth 10 points.An ID selector is worth 100 po 阅读全文
posted @ 2011-12-27 13:29
HelloWorld.Michael
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CSS offers a shorthand property called font, which lets you combine the following properties into a single line: font-style ,font-variant ,font-weight , font-size , line-height , and font-family .You don’t have to include every one of these properties, but you must include the font size and font fam 阅读全文
posted @ 2011-12-27 13:05
HelloWorld.Michael
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