Monday, October 29, 2012

Building fluid grid layouts in Adobe Dreamweaver CS6

Building fluid grid layouts in Adobe Dreamweaver CS6

Building fluid grid layouts in Adobe Dreamweaver CS6
 
The Fluid Grid layouts are clearly based on Ethan Marcotte's Responsive Web Design (the book and the article that led to the book). This feature allows you to specify three fluid grids: one each for mobile, tablet, and desktop layouts. Each grid can have 2–24 columns; a common gutter width between the columns and you can specify how wide the grid should spread across each screen.
You then add fluid grid layout div elements to construct your page in the mobile layout. (Mobile First) The next step lands squarely in the category of "brilliant"—you can resize the elements in each of the layouts, snap them to the grid, and then easily move individual elements to sit alongside and play nice with each other. This is done in either Design view or Live view, and, best of all all, Dreamweaver automatically calculates the percentage width of elements and margins to four decimal places.
This calculation is based on Ethan's formula of target/context = result. A good example of this would be column width. Let's assume you have a page width of 1232 pixels and you decide each column should be 350 pixels wide. To get the fluid column width you divide 350 (the Target) by 1232 (the Context) = 0.28409091. You would then move the decimal two places to the right for a result of 28.409091. Dreamweaver's Fluid Grid layout calculation will shave off the final two numbers for a result of 28.4090 per cent. This calculation applies to anything that has "hard" numbers attached to it such as font size, margin, padding and so on.
The CSS created by the Fluid Grid Layouts uses percentage widths and floats, so it produces layouts that adapt to any screen size. These styles are constructed on the basis of "mobile first" and even work in browsers that don't understand media queries. For those of you new to Responsive Web Design, this one feature alone is enough to get you into the game.
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