前端入门之——css day5 作业。编写一个简单的网页

知识回顾: 常用的:

块级标签: <div> <p> <h1-6> <ul> <ol> <dl>

内联标签    <a> <img> <p> <input> <span> <select> <textarea>

正常文档流:按照从上到下,从左到右的

脱离文档流:在正常文档流的基础上,将元素从文档流中取出,进行一个覆盖。

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <title></title>
        <link href="css/index_css.css" type="text/css" rel="stylesheet" />
    </head>
    <body>
        <!--头部信息 -->
        <div class="top">
            <div class="inner">
                <div class="dht">
                    <!-- 内联标签 -->
                    <a href="#" class="logo"></a>
                    <div class="menu">
                        <a href="#" class="tb active">全部</a>
                        <a href="#" class="tb">42区</a>
                        <a href="#" class="tb">段子</a>
                        <a href="#" class="tb">图片</a>
                        <a href="#" class="tb">挨踢1024</a>
                        <a href="#" class="tb">你问我答</a>
                    </div>
                    <div class="key_search">
                        <form action="#" method="post" name="search_info" id="search_info1">
                            <input type="text" class="search_txt" name="words" />
                            <a href="#" class="i">
                                <span class="ico"></span>
                            </a>
                        </form>
                    </div>
                    <div class="action_zc">
                        <a href="#" class="login_btn_a">注册</a>
                        <a href="#" class='login_btn_a'>登陆</a>
                        
                    </div>
                </div>
                
            </div>
        </div>
        <!-- 主体信息 -->
        <div class="main">
            <div class="inner_main">
                <div class="main_l">左边</div>    
                <div class="main_r">右边</div>
            </div>
        </div>
        <!-- 底部信息 -->
        <div class="bottom">
            <div class="inner">
                该吃中饭了。
            </div>
        </div>
    </body>
</html>
HTML
*{
    font-family: "微软雅黑";
    margin: 0px;
    padding: 0px;
}

.inner{
     1016px;
    margin: 0px auto;
    /* position: relative; */
    
}
/* 头部背景色 设置fixed 脱离文档流 */
.top{
    height: 44px;
     100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color:#2459a2;
}
/* 主体内容的背景色 */
.main{
    clear: both;
    background-color: #ededed;
    margin-top: 44px;
}

.logo{
     121px;
    height: 23px;
    background:url(../img/logo.png) no-repeat 0px 0px;
    margin-top: 11px;
    float: left;
}
.menu{
    float:left;
    margin-left: 20px;
    font-size: 12px;
    line-height: 44px;
}
.key_search{
    float: right;
    margin-top: 6px;
}

.tb{
    color:#c0cddf;
    display: inline-block;
    margin-left: -3px;
    padding: 0 13px 0 16px;
}
.tb:active{
    color:white;
    background-color: #204982;
}
.tb:hover{
    /* background-color: #3174cb; */
    color: #FFFFFF;
}

a{
    text-decoration: none;
}
.action_zc{
        float:right;
        margin-left: 20px;
        font-size: 12px;
        line-height: 44px;
}
.action_zc a{
    color: #FFFFFF;
    display: inline-block;
    height: 44px;
    margin:0 5px;
    padding: 0 20px;
    
}
.login_btn_a:hover{
    background-color: #3174cb;
}


.search_txt{
    background-color: #f4f4f4;
    border: 1px solid #e0e0e0;
    color:#333;
    height: 25px;
    padding: 2px 2px 2px 5px;
     91px;
    float: left;
}

.i{
     30px;
    height: 29px;
    display: inline-block;
    border: 1px solid #e0e0e0;
    border-left:0;
    background-color: #f4f4f4;
    float: left;
}
.ico{
    background-image: url(../img/icon_1.png);
    background-repeat: no-repeat;
    
    display: block;
    height: 12px;
     11px;
    margin-top: 9px;
    margin-left: 11px;
    overflow: hidden;
}

.inner_main{
     960px;
    margin: 0 auto;
    /* overflow: hidden; */
    height: auto;
    min-height: 713px;
    padding: 6px 28px 60px;
    background-color: #FFFFFF;
}

.main_l{
     630px;
    background-color: chocolate;
    float: left;
    margin-top: 3px;
    overflow: hidden;
}

.main_r{
     300px;
    float: right;
    padding-top: 4px;
    background-color: brown;
    min-height: 713px;
    height: auto;
}
css

  1 *{
  2     margin: 0px;
  3     padding: 0px;
  4     font-family: "microsoft yahei";
  5     font-size: 12px;
  6     
  7 }
  8 
  9 a{
 10     text-decoration: none;
 11 }
 12 .daoh{
 13     background-color: #2459a2;
 14     height: 44px;
 15     width: 100%;
 16     position: fixed;
 17     top: 0px;
 18     left: 0px;
 19     z-index: 999;
 20 }
 21 .buju{
 22     width: 1020px;
 23     margin: 0px auto;
 24 }
 25 .logo{
 26     background-image: url(../img/logo.png);
 27     /* 如果想要给内联标签设置宽度,必须转化为块标签 */
 28     float: left;
 29     width: 121px;
 30     height: 23px;
 31     margin-top: 11px;
 32 }
 33 .menu{
 34     font-size: 12px;
 35     float: left;
 36     margin-left: 20px;
 37     line-height: 44px;
 38     /* 因为需要把子标签中的a 变为块级元素.
 39     inline-block默认的空格符就是标签与标签之间的空隙造成的。
 40     我们可以通过在父级标签中做如下设置,可以消除空隙 */
 41     word-spacing: -4px;
 42 }
 43 .menu a{    
 44     display: inline-block;
 45     color:#c0cddf;
 46     padding: 0 13px 0 16px;
 47 }
 48 .menu a:hover{
 49     color: #fff;
 50     background-color: #376fbd;
 51 }
 52 .menu a:active{
 53     color: white;
 54     background-color: #204982;
 55 }
 56 .menu .active{
 57     color: white;
 58     background-color: #204982;
 59 }
 60 .key_search{
 61     float: right;
 62     line-height: 44px;
 63     margin-top: 6px;
 64 }
 65 .key_search .search_txt{
 66     width: 100px;
 67     height: 30px;
 68     float: left;
 69     
 70 }
 71 .key_search a{
 72     /* display: inline-block; */
 73     width: 30px;
 74     height: 32px;
 75     background-color: #FFFFFF;
 76     border: 1px solid #e0e0e0;
 77     border-left: 0px;
 78     float: left;
 79 }
 80 .ico{
 81     display:block;
 82     background-image: url(../img/icon.png);
 83     background-position: 0px -197px;
 84     height: 12px;
 85     width: 11px;
 86     margin-top: 9px;
 87     margin-left: 10px;
 88 }
 89 .action_zc{
 90     float: right;
 91     font-size: 12px;
 92     line-height: 44px;
 93 }
 94 .action_zc a{
 95     display: inline-block;
 96     color: #FFFFFF;
 97     height: 44px;
 98     margin:0 5px;
 99     padding: 0 20px;
100 }
101 .action_zc a:hover{
102     background-color: #376fbd;
103 }
104 
105 
106 
107 .neirong{
108     /* 不管导航栏的变化如何,我都在下方. */
109     clear: both;
110     background-color:#ededed ;
111     margin-top: 44px;
112 }
113 
114 .buju2{
115     width: 960px;
116     margin: 0 auto;
117      /*overflow: hidden; */
118     height: auto;
119     min-height: 713px;
120     padding: 6px 28px 60px;
121     background-color: white;
122 }
123 .neirong-l{
124     float: left;
125     width: 630px;
126     /* background-color: #2459A2; */
127     margin-top: 3px;
128 }
129 .neirong-r{
130     width: 300px;
131     background-color: brown;
132     float: right;
133     margin-top: 4px;
134 }
135 .nei_00{
136     width: 100%;
137     height: 43px;
138     /* background-color: yellow; */
139     border-bottom: solid 1px #3174cb;
140 }
141 .nei_00_l a{
142     display: inline-block;
143     width:60px;
144     height: 26px;
145     font-size: 12px;
146     margin-top: 3px;
147     margin-bottom: 13;
148     text-align: center;
149     line-height: 26px;
150     font-weight: bold;
151 }
152 .nei_00_l{
153     float: left;
154 }
155 .nei_00_l a:active{
156     color: black;
157     border: 1px solid #ccc;
158     border-radius: 13px;
159     background-color:#F0F8FF ;
160 }
161 .nei_00_l .active{
162     color: black;
163     border: 1px solid #ccc;
164     border-radius: 13px;
165     background-color:#F0F8FF ;
166 }
167 .nei_00_m{
168     float: left;
169     margin-left: 144px;
170     margin-top: 10px;
171 }
172 .nei_00_m a{
173     color: #84a42b;
174     font-size: 12px;
175     text-align: center;
176     margin-left: 10px;    
177 }
178 .nei_00_m .active{
179     color: #CCCCCC;
180     text-decoration: none;
181 }
182 .nei_00_m a:hover{
183     text-decoration: underline;
184 }
185 
186 .nei_00_r{
187     float: right;
188     background-color: #84a42b;
189     color:white;
190     width: 134px;
191     height: 30px;
192     font-size: 14px;
193     text-align: center;
194     line-height: 30px;
195 }
196 .nei_00_r .ico_1{
197     display: inline-block;
198     height: 12px;
199     width: 11px;
200     background-image: url(../img/icon.png);
201     background-position: 0 -184px;
202 }
203 .nei_00_r .ico_2{
204     margin-left: 8px;
205     font-weight: 400;
206 }
207 .item{
208     display: inline-block;
209     clear: both;
210     padding: 10px;
211     border-bottom: 1px solid #dce7f4;
212     position: relative;
213 }
214 .item .new-pic{
215      display: inline; 
216     float: right;
217     margin-left: 10px;
218     margin-bottom: 5px;
219 }
220 .item .new-pic img{
221     width: 60px;
222     height: 60px;
223     background-color: #FFFFFF;
224     border: 1px solid #CCCCCC;
225     padding: 1px;
226     vertical-align: top;
227     /* float: right; */
228 }
229 .item .new-pic img:hover{
230     width: 120px;
231     height: 120px;
232     background-color: #FFFFFF;
233     border: 1px solid #CCCCCC;
234     padding: 1px;
235     vertical-align: top;
236     position: absolute;
237     top:0;
238     right:0;
239     /* float: right; */
240 }
241 .item .new-content{
242     line-height: 20px;
243     
244 }
245 .item .new-content .show-content{
246     font-size: 14px;
247     color: #369;
248     font-weight: 700;
249 }
250 .item .new-content .content-soure{
251     color: #b4b4b4;
252     margin-left: 7px;
253 }
254 .item .new-content .n2{
255     color: #b4b4b4;
256 }
257 .item .new-content .n2 .content-kind{
258     white-space: nowrap;
259 }
260 .part2{
261     line-height: 20px;
262     color: #787878;
263     margin-top: 5px;
264 }
265 .part3{
266     padding-top:6px;
267     color: #ccc;
268     margin-bottom: 6px;
269 }
270 .part3 span{
271     display: inline-block;
272     width: 18px;
273     height: 18px;
274     
275 }
276 .part3 a{
277     color: #99aecb;
278     font-size: 14px;
279     font-weight: 700;
280     margin-left: 7px;
281     vertical-align: 4px;
282 }
283 
284 .part3 .tj span{
285     background-image: url(../img/icon_18_118.png);
286     background-position: 0 -40px;
287 }
288 .part3 .pl span{
289     background-image: url(../img/icon_18_118.png);
290     background-position: 0 -100px;
291 }
292 .part3 .sc span{
293     background-image: url(../img/icon_18_118.png);
294     background-position: 0 -160px;
295 }
296 
297 .jiewei{
298     /* 不管导航栏的变化如何,我都在下方. */
299     clear: both;
300     background-color:#ededed ;
301     
302 }
303 
304 .buju3{
305     width: 960px;
306     background-color: white;
307     margin: 0 auto;
308     padding: 20px 28px;
309     
310 }
311 .footer{
312     border-top: solid 1px #3174cb;
313     padding-top: 20px;
314     
315 }
316 .footer p{
317     text-align: center;
318     line-height: 40px;
319 }
css
<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <title></title>
        <link href="css/css.css" type="text/css" rel="stylesheet" />
    </head>
    <body>
        <div class="wrapper">
            <div class="daoh">
                <div class="buju">
                    <div class="daoh_inner">
                        <!-- 内联标签 -->
                        <a href="#" class="logo"></a>
                        <div class="menu">
                            <a href="#" class="tb active">全部</a>
                            <a href="#" class="tb">42区</a>
                            <a href="#" class="tb">段子</a>
                            <a href="#" class="tb">图片</a>
                            <a href="#" class="tb">挨踢1024</a>
                            <a href="#" class="tb">你问我答</a>
                        </div>
                        <div class="key_search">
                            <form action="#" method="post" name="search_info" id="search_info1">
                                <input type="text" class="search_txt" name="words" />
                                <a href="#" class="i">
                                    <span class="ico"></span>
                                </a>
                            </form>
                        </div>
                        <div class="action_zc">
                            <a href="#" class="login_btn_a">注册</a>
                            <a href="#" class='login_btn_a'>登陆</a>
                            
                        </div>
                    </div>
                </div>
            </div>
            <div class="neirong">
                <div class="buju2">
                    <div class="neirong-l">
                        <div class="nei_00">
                            <div class="nei_00_l">
                            <a href="#" class="zr-btn active">最热</a>
                            <a href="#" class="find-btn">发现</a>
                            <a href="#" class="person-btn">人类发布</a>
                            </div>
                            <div class="nei_00_m">
                                <a href="#" class="active">即时排序</a>
                                <a href="#">24小时</a>
                                <a href="#">3天</a>
                            </div>
                            <a class="nei_00_r">
                                <span class="ico_1"></span>
                                <span class="ico_2">发布</span>
                            </a>
                            
                        </div>
                        <!-- 第一条 -->
                        <div class="item">
                            <div class="new-pic">
                                <img src="img/1.jpg" />
                            </div>
                            <div class="new-content">
                                <div class="part1">
                                    <a class="show-content">马斯克价值30亿美元的长谈:关于人工智能、宇宙终结,以及威士忌、烟草和武士剑</a>
                                    <span class="content-soure">-m.21jingji.com</span>
                                    <a href="#" class="n2">
                                        <span class="content-kind">挨踢1024</span>
                                    </a>
                                </div>
                                <div class="part2">
                                    <span>马斯克价值30亿美元的长谈:关于人工智能、宇宙终结,以及威士忌、烟草和武士剑</span>
                                </div>
                                <div class="part3">
                                    <a class="tj" title="推荐">
                                        <span class="hand-icon"></span>
                                        <b>18</b>
                                    </a>
                                    <a class="pl" title="评论">
                                        <span class="hand-icon"></span>
                                        <b>210</b>
                                    </a>
                                    <a class="sc" title="加入收藏">
                                        <span class="hand-icon"></span>
                                        <b>私藏</b>
                                    </a>
                                                                        
                                </div>
                                
                            </div>
                            
                            
                        </div>
                        <!-- 第二条 -->
                        <div class="item">
                            <div class="new-pic">
                                <img src="img/3.jpg" />
                            </div>
                            <div class="new-content">
                                <div class="part1">
                                    <a class="show-content">桥咖啡,一家在五道口经营了15年的咖啡馆,在几经转手之后,最终在杨小飞手上跑完了最后一棒,于6月29日关上最后一盏灯。</a>
                                    <span class="content-soure">-mp.weixin.qq.com</span>
                                    <a href="#" class="n2">
                                        <span class="content-kind">挨踢1024</span>
                                    </a>
                                </div>
                                <div class="part2">
                                    <span>杨小飞端着两杯咖啡上了二楼,笑意中略带疲惫。九月的第一天,我们约在五道口做采访。</span>
                                </div>
                                <div class="part3">
                                    <a class="tj" title="推荐">
                                        <span class="hand-icon"></span>
                                        <b>8</b>
                                    </a>
                                    <a class="pl" title="评论">
                                        <span class="hand-icon"></span>
                                        <b>5</b>
                                    </a>
                                    <a class="sc" title="加入收藏">
                                        <span class="hand-icon"></span>
                                        <b>私藏</b>
                                    </a>
                                                                        
                                </div>
                                
                            </div>
                            
                            
                        </div>
                        <!-- 第三条 -->
                        <div class="item">
                            <div class="new-pic">
                                <img src="img/1.jpg" />
                            </div>
                            <div class="new-content">
                                <div class="part1">
                                    <a class="show-content">马斯克价值30亿美元的长谈:关于人工智能、宇宙终结,以及威士忌、烟草和武士剑</a>
                                    <span class="content-soure">-m.21jingji.com</span>
                                    <a href="#" class="n2">
                                        <span class="content-kind">挨踢1024</span>
                                    </a>
                                </div>
                                <div class="part2">
                                    <span>马斯克价值30亿美元的长谈:关于人工智能、宇宙终结,以及威士忌、烟草和武士剑</span>
                                </div>
                                <div class="part3">
                                    <a class="tj" title="推荐">
                                        <span class="hand-icon"></span>
                                        <b>18</b>
                                    </a>
                                    <a class="pl" title="评论">
                                        <span class="hand-icon"></span>
                                        <b>210</b>
                                    </a>
                                    <a class="sc" title="加入收藏">
                                        <span class="hand-icon"></span>
                                        <b>私藏</b>
                                    </a>
                                                                        
                                </div>
                                
                            </div>
                            
                            
                        </div>
                        <!-- 第三条 -->
                        <div class="item">
                            <div class="new-pic">
                                <img src="img/1.jpg" />
                            </div>
                            <div class="new-content">
                                <div class="part1">
                                    <a class="show-content">马斯克价值30亿美元的长谈:关于人工智能、宇宙终结,以及威士忌、烟草和武士剑</a>
                                    <span class="content-soure">-m.21jingji.com</span>
                                    <a href="#" class="n2">
                                        <span class="content-kind">挨踢1024</span>
                                    </a>
                                </div>
                                <div class="part2">
                                    <span>马斯克价值30亿美元的长谈:关于人工智能、宇宙终结,以及威士忌、烟草和武士剑</span>
                                </div>
                                <div class="part3">
                                    <a class="tj" title="推荐">
                                        <span class="hand-icon"></span>
                                        <b>18</b>
                                    </a>
                                    <a class="pl" title="评论">
                                        <span class="hand-icon"></span>
                                        <b>210</b>
                                    </a>
                                    <a class="sc" title="加入收藏">
                                        <span class="hand-icon"></span>
                                        <b>私藏</b>
                                    </a>
                                                                        
                                </div>
                                
                            </div>
                            
                            
                        </div>
                        <!-- 第三条 -->
                        <div class="item">
                            <div class="new-pic">
                                <img src="img/1.jpg" />
                            </div>
                            <div class="new-content">
                                <div class="part1">
                                    <a class="show-content">马斯克价值30亿美元的长谈:关于人工智能、宇宙终结,以及威士忌、烟草和武士剑</a>
                                    <span class="content-soure">-m.21jingji.com</span>
                                    <a href="#" class="n2">
                                        <span class="content-kind">挨踢1024</span>
                                    </a>
                                </div>
                                <div class="part2">
                                    <span>马斯克价值30亿美元的长谈:关于人工智能、宇宙终结,以及威士忌、烟草和武士剑</span>
                                </div>
                                <div class="part3">
                                    <a class="tj" title="推荐">
                                        <span class="hand-icon"></span>
                                        <b>18</b>
                                    </a>
                                    <a class="pl" title="评论">
                                        <span class="hand-icon"></span>
                                        <b>210</b>
                                    </a>
                                    <a class="sc" title="加入收藏">
                                        <span class="hand-icon"></span>
                                        <b>私藏</b>
                                    </a>
                                                                        
                                </div>
                                
                            </div>
                            
                            
                        </div>
                        <!-- 第三条 -->
                        <div class="item">
                            <div class="new-pic">
                                <img src="img/1.jpg" />
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原文地址:https://www.cnblogs.com/Mengchangxin/p/9603215.html