HTML: A Beginner s Guide in Java

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HTML: A Beginner s Guide
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Figure 12-1 The centered, fluid layout is shown in a relatively small browser window
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Even though the styles used for positioning this layout are relatively simple, it helps to break each section down to really understand how each style sheet property works So let s look at the properties applied to the body tag
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body { margin: 0px; padding: 0px; }
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Whenever you set out to use style sheets to position elements on the page, it s best to get off to a good start That usually means letting all the browsers know exactly where to begin displaying your content, because some browsers have different default starting points than others If you remember to think of the available space within the browser window as a big box, the starting point identifies any margins outside that box, and the padding inside of it
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12: Positioning Page Elements
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Figure 12-2 The centered, fluid layout is shown in a larger browser window For the purposes of this layout, we re essentially turning off all margins and padding This means we can place content all the way up to the edge of the browser window if we choose, and it gives us the flexibility to design accordingly
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#content
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The main content area (outlined with a dotted line in Figures 12-1 and 12-2) is contained within a division called "content" using code like this:
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<div id="content"> Content goes here </div>
All of the formatting of that content is achieved by adding properties to the style sheet declaration for that section
#content { margin: 50px; padding: 20px; color: black; background-color: #ccc; border:1px dashed black; }
HTML: A Beginner s Guide
The margin property adds a 50-pixel margin around all sides of the content box Because div tags are block-level elements in HTML, the content box fills the remaining available space And, because there is an equal amount of space around all four sides, the content box becomes centered in the browser window Voil ! To create some empty space between the edge of the box and the content inside, the padding property is added This makes a 20-pixel buffer zone along all internal edges of the box The background-color, color, and border properties aren t used for positioning but to add character to the box itself
Pull It All Together
The complete code used to create this layout, as shown previously in Figures 12-1 and 12-2, is as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 10 Transitional//EN" "http://wwww3org/TR/xhtml1/DTD/transitionaldtd"> <html> <head> <title> Single-Column, Centered, Fluid Layout </title> <style type="text/css"> body { margin: 0px; padding: 0px; } #content { margin: 50px; padding: 20px; color: black; background-color: #ccc; border:1px dashed black; } p { font-size: 10pt; line-height: 20pt; font-family: verdana, arial, helvetica, sans-serif; margin: 0px 0px 12px 0px; } h1 { font-size: 14pt; font-family: georgia; } h2 { font-size: 12pt; font-family: georgia; font-style: italic; } </style> </head>
12: Positioning Page Elements
<body> <div id="content"> <h1>Chop Point Summer Camp</h1> <h2>See why campers call it "the best summer you'll ever have!* "</h2> <p>CHOP POINT is a Maine summer camp devoted to teenagers that combines a strong residential camping program with the excitement of an adventurous trip program Each summer, 80 teenagers between the ages of twelve and eighteen come to Chop Point from all over the world to have one of the best summers of their lives The camp is located two hours up the Maine coast in the town of Woolwich The property includes 50 wooded acres of land at the end of a peninsula, and a mile of shoreline on picturesque and historic Merrymeeting Bay, on the Kennebec River</p> <p>><a href="">Learn More</a></p> <p>*Unless you come back next year</p></div> </body> </html>
I always show internal style sheets in my examples, because it s easier when teaching However, if you re adding these layouts to multiple pages, it makes much more sense to save the style sheet as an external style sheet, and simply reference it from each page The final section in this chapter discusses several ways to accomplish this task
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