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<html><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Keywords" name="Keywords"content="JavaScript, examples, JavaScript: The Definitive Guide"><title>Example 16-3 from JavaScript: The Definitive Guide, Fifth Edition</title><style>body { font-family: arial, sans-serif}.lefttitle { font: bold x-small arial, sans-serif; margin: 5px; letter-spacing: .15em; text-transform:uppercase;}.leftcaption { font: italic x-small sans-serif; margin-bottom: 20px;}#banner { font-family:sans-serif; color:#333; font-size:x-large; font-weight:normal; padding:15px; padding-top: 3px; border-bottom:4px double #666;}#banner h1 { font-size: x-large; margin: 0px; padding: 0px;}#banner .description { font-size:large; margin-left: 2px;}pre { border: solid black 1px; background-color: #ddd; padding: 10px; margin: 0px;} </style></script></head><body><div id="banner"><h1>davidflanagan.com/javascript5</h1><span class="description">Example 16-3 from<i>JavaScript: The Definitive Guide, Fifth Edition</i></span></div><div style="float: left; 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text-align: right"><a href="index.html" tppabs="http://www.davidflanagan.com/javascript5/index.html">Table of Examples</a></div><pre><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN"><head><style type="text/css">/** * This is a CSS stylesheet that defines three style rules that we use * in the body of the document to create a "window" visual effect. * The rules use positioning attributes to set the overall size of the window * and the position of its components. Changing the size of the window * requires careful changes to positioning attributes in all three rules. **/div.window { /* Specifies size and border of the window */ position: absolute; /* The position is specified elsewhere */ width: 300px; height: 200px; /* Window size, not including borders */ border: 3px outset gray; /* Note 3D "outset" border effect */}div.titlebar { /* Specifies position, size, and style of the titlebar */ position: absolute; /* It's a positioned element */ top: 0px; height: 18px; /* Titlebar is 16px + padding and borders */ width: 290px; /* 290 + 5px padding on left and right = 300 */ background-color: #aaa; /* Titlebar color */ border-bottom: groove gray 2px; /* Titlebar has border on bottom only */ padding: 3px 5px 2px 5px; /* Values clockwise: top, right, bottom, left */ font: bold 11pt sans-serif; /* Title font */}div.content { /* Specifies size, position and scrolling for window content */ position: absolute; /* It's a positioned element */ top: 25px; /* 18px title+2px border+3px+2px padding */ height: 165px; /* 200px total - 25px titlebar - 10px padding*/ width: 290px; /* 300px width - 10px of padding */ padding: 5px; /* Allow space on all four sides */ overflow: auto; /* Give us scrollbars if we need them */ background-color: #ffffff; /* White background by default */}div.translucent { /* this class makes a window partially transparent */ opacity: .75; /* Standard style for transparency */ -moz-opacity: .75; /* Transparency for older Mozillas */ filter: alpha(opacity=75); /* Transparency for IE */}</style></head><body><!-- Here is how we define a window: a "window" div with a titlebar and --><!-- content div nested between them. Note how position is specified with --><!-- a style attribute that augments the styles from the stylesheet. --><div class="window" style="left: 10px; top: 10px; z-index: 10;"><div class="titlebar">Test Window</div><div class="content">1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>0<br><!-- Lots of lines to -->1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>0<br><!-- demonstrate scrolling--></div></div><!-- Here's another window with different position, color, and font weight --><div class="window" style="left: 75px; top: 110px; z-index: 20;"><div class="titlebar">Another Window</div><div class="content translucent" style="background-color:#d0d0d0; font-weight:bold;">This is another window. Its <tt>z-index</tt> puts it on top of the other one.CSS styles make its content area translucent, in browsers that support that.</div></div></body></pre><div class="lefttitle" style="padding:0px; text-align: right"><a href="index.html" tppabs="http://www.davidflanagan.com/javascript5/index.html">Table of Examples</a></div><p><script type="text/javascript">amazon_ad_tag="davidflanagancom"; amazon_ad_width="300"; amazon_ad_height="250"; amazon_ad_logo="hide";</script><script type="text/javascript" src="../../www.assoc-amazon.com/s/ads.js" tppabs="http://www.assoc-amazon.com/s/ads.js"></script></div></body></html>?? 快捷鍵說明
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