利用CSS3的border-radius和box-shadow可以很容易的实现一个类似Windows7的桌面效果的页面，效果如图
主要是圆角的设计，透明设计，参考css3实战地5章的类容，马马虎虎做了一下午，只有样式，没有事件，一个html文件，一个css文件。源码以下：
simuWin7.html:
1 <html> 2 <head> 3 <title>用CSS3模拟Windows7的界面</title> 4 <link rel="stylesheet" href="./simuWin7.css" /> 5 </head> 6 <body> 7 <!-- 桌面 --> 8 <div id="desktop"> 9 <!-- 第一个窗口 --> 10 <div id="bgwindow" class="window first"> 11 <span>窗口1</span> 12 <div class="control"> 13 <button class="ctrl">-</button> 14 <button class="ctrl">O</button> 15 <button class="ctrl">X</button> 16 </div> 17 <div class="content">这是第一个窗口</div> 18 </div> 19 20 <!-- 窗口 --> 21 22 <div id="frontWindow" class="window"> 23 <span>窗口2</span> 24 25 <div class="control"> 26 <button class="ctrl">-</button> 27 <button class="ctrl">O</button> 28 <button class="ctrl">X</button> 29 </div> 30 31 <div id="winInput"> 32 <input type="text" placeholder="hello world"> 33 <input type="text" placeholder="again"> 34 </div> 35 <div id="winContent" class="content">这是第二个窗口的文本区域</div> 36 </div> 37 38 <!-- 开始菜单&工具栏 --> 39 <div id="startmenu"> 40 <button id="winflag">Start</button> 41 <span id="tollBtn"> 42 <button class="application">A</button> 43 <button class="application">B</button> 44 <button class="application">C</button> 45 <button class="application">D</button> 46 <button class="application">E</button> 47 <button class="application">F</button> 48 <button class="application">G</button> 49 <button class="application">H</button> 50 </span> 51 </div> 52 53 </div> 54 55 </body> 56 </html>
simuWin7.css：
1 body {
2 padding: 0;
3 margin: 0;
4 height: 100%;
5 }
6
7 /*background of desktop*/
8 #desktop {
9 background: #2c609b;
10 height: 100%;
11 width: 100%;
12 font: 12px "Segoe UI", Tahoma, sans-serif;
13 position: relative;
14 -moz-box-shadow: inset 0 -200px 100px #032b5c,
15 inset -100px 100px 100px #2073b5,
16 inset -100px 200px 100px #1f9bb1;
17 -webkit-box-shadow: inset 0 -200px 100px #032b5c,
18 inset -100px 100px 100px #2073b5,
19 inset -100px 200px 100px #1f9bb1;
20 box-shadow: inset 0 -200px 100px #032b5c,
21 inset -100px 100px 100px #2073b5,
22 inset -100px 200px 100px #1f9bb1;
23 overflow: hidden;
24 }
25
26 /*startmenu*/
27 #startmenu {
28 /*position*/
29 position: absolute;
30 bottom: 0;
31 /*size*/
32 height: 40px;
33 width: 100%;
34 background: rgba(178, 215, 255, 0.25);
35 -webkit-box-shadow: 0 -2px 20px rgba(0,0,0,0,25);
36 -moz-box-shadow: 0 -2px 20px rgba(0,0,0,0.25),
37 inset 0, 1px #042754,
38 inset 0 2px #5785b0;
39 box-shadow: 0 -2px 20px rgba(0,0,0,0.25),
40 inset 0, 1px #042754,
41 inset 0 2px #5785b0;
42 overflow: hidden;
43 }
44
45 #startmenu button {
46 font-size: 1.6em;
47 color: rgba(0,0,0,0.1);
48 margin-top: 6px;
49 text-shadow: 0px 0px 1px #00294b;
50 text-
51 }
52
53 /*startmenu*/
54 #startmenu #winflag {
55 float: left;
56 width: 60px;
57 height: 34px;
58 margin: 3px 8px;
59 /*padding: 0 auto 0;*/
60 background: #034a76;
61 border: none;
62 -moz-border-radius: 18px;
63 -webkit-border-radius: 18px;
64 border-radius: 18px;
65
66 -moz-box-shadow: 0 0 1px #34f,
67 0 0 3px #000,
68 0 0 3px #000;
69 -webkit-box-shadow: 0 0 1px #34f,
70 0 0 3px #000,
71 0 0 3px #000;
72 box-shadow: 0 0 1px #34f,
73 0 0 3px #000,
74 0 0 3px #000;
75 }
76
77 /*taskbar sheet*/
78 #startmenu .application {
79 position: relative;
80 height: 34px;
81 width: 60px;
82 bottom: 3px;
83 background:rgba(14, 59, 103, 0.25);
84 border: 1px solid rgba(0,0,0,0.6);
85 -webkit-border-radius: 4;
86 -moz-border-radius: 4;
87 border-radius: 4;
88 }
89
90 #startmenu .application:hover {
91 background-color: hsla(240,70%, 70%, 0.6);
92 }
93
94 #startmenu #winflag:hover {
95 background-color: hsla(150, 50%, 70%, 0.5);
96 }
97
98 /*window basic style*/
99 .window {
100 position: absolute;
101 left:150px;
102 top:100px;
103 width: 300px;
104 height: 400px;
105 padding: 8px;
106
107 /*特殊效果*/
108 border: 1px solid hsla(0,100%,0%,0.6);
109 background: rgba(178, 215, 255, 0.75);
110
111 -webkit-border-radius: 8px;
112 -moz-border-radius: 8px;
113 border-radius: 8px;
114
115 /*shadow*/
116 -webkit-box-shadow: 0 2px 32px #000,
117 0 0 1px #000,
118 0 0 1px #000;
119 -moz-box-shadow: 0 2px 16px #000,
120 0 0 1px #000,
121 0 0 1px #000;
122
123 box-shadow: 0 2px 16px #000,
124 0 0 1px #000,
125 0 0 1px #000;
126
127 text-shadow: 0 0 10px #fff;
128 }
129
130 .window span {display: block;}
131
132 .window input {
133 width: 100px;
134 margin-right: 40px;
135 -webkit-border-radius: 4px;
136 -moz-border-radius: 4px;
137
138 -moz-box-shadow: 0 0 2px #fff,
139 0 0 1px #fff,
140 inset 0 0 3px #fff;
141 -webkit-box-shadow: 0 0 2px #fff,
142 0 0 1px #fff;
143 /*inset 0 0 3px #fff;*/
144 box-shadow: 0 0 2px #fff,
145 0 0 1px #fff,
146 inset 0 0 3px #fff;
147 }
148
149 .window winInput {margin-left: 12px;}
150
151 .window.first {
152 left:300px;
153 top: 180px;
154 opacity: 0.66;
155 }
156 .window span {margin-bottom:20px;}
157 .window.first span {margin-bottom: 60px;}
158
159 .window .content {
160 margin-top: 16px;
161 padding: 10px;
162 height:250px;
163 background: hsla(0, 0%, 100%, 0.6);
164 border: 1px, dotted, #000;
165
166 -webkit-border-radius: 6px;
167 -moz-border-radius: 6px;
168 border-radius: 6px;
169
170
171 -webkit-box-shadow: 0 0 5px #fff,
172 0 0 1px #fff;
173 /*inset 0 1px 2px #aaa;*/
174 -moz-box-shadow: 0 0 5px #fff,
175 0 0 1px #fff,
176 inset 0 1px 2px #aaa;
177 box-shadow: 0 0 50px hsla(120, 90%, 60%, 0.7),
178 0 0 1px #fff,
179 inset 0 1px 2px #aaa;
180
181 text-shadow: none;
182 }
183
184 .window .control {
185 position: relative;
186 left: 220px;
187 top: -40px;
188 }
189
190 .window.first .control {top: -80px;}
191
192 .window .control .ctrl {
193 position: relative;
194 /*height: 34px;*/
195 width: 26px;
196 /*bottom: 3px;*/
197 background:rgba(14, 59, 103, 0.25);
198 border: 1px solid rgba(0,0,0,0.6);
199 -webkit-border-radius: 3;
200 -moz-border-radius: 3;
201 border-radius: 3;
202 }
203
204 .window .control .ctrl:hover {
205 background-color: hsla(240,70%, 80%, 0.6);
206 }
对于shadow的使用还有些难以把握，对于色彩的把握基本没什么方法，纯粹乱配，不过熟悉了一下hsl，hsla，rgba的基本用法，收获还是有的，以后要加强配色的感性认识。
转载于:https://www.cnblogs.com/kiwi/archive/2013/03/01/2939531.html