6_7_8_10html-css

Ps: 1.标准流 2.浮动 3.定位 CCS重点

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    div {
        width: 200px;
        height: 200px;
        background-color: pink;
        
    }
    .top {

        position: relative; 
        top: 100px;
        left: 100px;
    }
    .bottom {
        background-color: purple;
    }
    </style>
</head>
<body>
    <div class="top"></div>
    <div class="bottom"></div>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    body {
        height: 2000px;
    }
    div {
        width: 100px;
        height: 100px;
        background-color: pink;
        /*position: absolute;
        top: 10px;
        left: 10px;*/
    }
    .top {
        position: absolute;  /*不占位置 跟浮动一样*/
        right: 0;
        bottom: 0;

    }
    .bottom {
        background-color: purple;
        width: 110px;
    }
    </style>
</head>
<body>
    <div class="top"></div>
    <div class="bottom"></div>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    .father {
        width: 500px;
        height: 500px;
        background-color: pink;
        margin: 100px;
    }
    .son {
        width: 200px;
        height: 200px;
        background-color: purple;
        position: absolute;
        top: 50px;
        left: 50px;
        /*若所有父元素都没有定位，以浏览器当前屏幕为准对齐(document文档)。*/
    }
    </style>
</head>
<body>
    <div class="father">
        <div class="son"></div>
    </div>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    .yeye {
        width: 800px;
        height: 800px;
        background-color: skyblue;
        position: absolute;
    }
    .father {
        width: 500px;
        height: 500px;
        background-color: pink;
        margin: 100px;
        /*position: absolute;*/
    }
    .son {
        width: 200px;
        height: 200px;
        background-color: purple;
        position: absolute;
        top: 50px;
        left: 50px;
        /*若所有父元素都没有定位，以浏览器当前屏幕为准对齐(document文档)。*/
    }
    </style>
</head>
<body>
<div class="yeye">
    <div class="father">
        <div class="son"></div>
    </div>
</div>
    
</body>
</html>

 <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    div {
        width: 310px;
        height: 190px;
        border: 1px solid #ccc;
        margin: 100px auto;
        padding: 10px;
        position: relative;
    }
    .top {
        position: absolute;
        top: 0;
        left: 0;
    }
    
    .bottom {
        position: absolute;
        right: 0;
        bottom: 0;
    }
    
    </style>
</head>
<body>
    <div>
        <img src="images/top_tu.gif" alt="" class="top">
        <img src="images/br.gif" alt="" class="bottom">
        <img src="images/adv.jpg" height="190" width="310" alt="">
    </div>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    div {
        width: 200px;
        height: 200px;
        background-color: pink;
        /*margin: 100px auto;*/
        /*float: left;*/
        position: absolute;
        /*加了定位 浮动的的盒子  margin 0 auto 失效了*/
        left: 50%;
        margin-left: -100px;
        top: 50%;
        margin-top: -100px;
    }
    </style>
</head>
<body>
    <div></div>
</body>
</html>

--顺丰模板-----------------------------------------------

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    * {
        margin: 0;
        padding: 0;
    }
    .sf {
        width: 1259px;
        height: 472px;
        margin: 100px auto;
        position: relative;
    }
    .nav {
        width: 960px;
        height: 80px;
        background-color: #000;
        position: absolute; /*只有绝对定位才可以，不占位置压着别人；  下面的三行是为了居中*/
        bottom: 0;
        left: 50%;
        margin-left: -480px;
    }
    .nav li {
        float: left;/*浮动是为了排成一行*/
        width: 160px;
        height: 80px;
    }
    .nav li a {
        width: 160px;
        height: 80px;
        display: block;
        text-align: center;
        line-height: 80px;
        color: #fff;
        text-decoration: none;
    }
    .nav li a:hover {
        background-color: #fff;
        color: #000;
    }
    </style>
</head>
<body>
    <div class="sf">
        <a href="#">
            <img src="images/sf.png" height="472" width="1259" alt="">
        </a>
        <div class="nav">
            <ul>
                <li><a href="#">快递查询</a></li>
                <li><a href="#">快递查询</a></li>
                <li><a href="#">快递查询</a></li>
                <li><a href="#">快递查询</a></li>
                <li><a href="#">快递查询</a></li>
                <li><a href="#">快递查询</a></li>
            </ul>
        </div>
    </div>
</body>
</html>

----------------------------------淘宝轮播图案例

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    * {
        margin: 0;
        padding: 0;
    }
    li {
        list-style: none;
    }
    .tb {
        width: 520px;
        height: 280px;
        background-color: pink;
        margin: 100px auto;/*居中*/
        position: relative;/*相对*/
    }
    .tb a {
        width: 24px;
        height: 36px;
        
        display: block;
        position: absolute;
        top: 50%;/*到中间去*/
        margin-top: -18px;
    }
    .left {
        left: 0;/*到最左*/
        background: url(images/left.png) no-repeat;
    }
    .right {
        right: 0;
        background: url(images/right.png) no-repeat;
    }
    .tb ul {
        width: 70px;
        height: 13px;
        background: rgba(255, 255, 255, .3);
        position: absolute; /* 加定位*/
        bottom: 18px;
        /**居中*/
        left: 50%; /*水平走父容器的一半*/
        margin-left: -35px; /*左走自己的一半*/
        border-radius: 8px;
     }
     .tb ul li {
         width: 8px;
         height: 8px;
         background-color: #fff;
         float: left; /*排成一行*/
         margin: 3px;
         border-radius: 50%;
     }
     .tb .current {
         background-color: #f40;
     }
    </style>
</head>
<body>
    <div class="tb">
        <img src="images/tb.jpg" >
        <a href="#" class="left"></a>
        <a href="#" class="right"></a>
        <ul>
            <li class="current"></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
        </ul>

    </div>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    .father {
        width: 500px;
        height: 500px;
        background-color: purple;
        margin: 100px;
        position: relative;
    }
    .ad {
        width: 200px;
        height: 200px;
        background-color: pink;
        position: fixed;  /*固定定位*/
        left: 0;
        top: 100px;
    }
    </style>
</head>
<body>
    <div class="father">
        <div class="ad">ad</div>
    </div>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
    <p>我是文字</p>
</body>
</html>

------------------------------------------------------------

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    div {
        height: 100px;
        background-color: pink;
         /*float: left;  模式转换 inline-block */
        position: fixed;  /*绝对定位 he  固定定位模式转换 */
        width: 100%;
        top: 0;
        left: 0;
    }
    </style>
</head>
<body>
    <div></div>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    div {
        width: 200px;
        height: 200px;
        background-color: red;
        position: absolute;
        /*z-index: 0;  只有定位的盒子才有*/
    }
    .red {
        z-index: 1;
    }
    .blue {
        background-color: blue;
        left: 50px;
        top: 50px;
        z-index: 2;
    }
    .green {
        background-color: green;
        left: 100px;
        top: 100px;
        z-index: 999;
    }
    </style>
</head>
<body>
    <div class="red"></div>
    <div class="blue"></div>
    <div class="green"></div>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    div {
        width: 250px;
        height: 400px;
        border: 1px solid #ccc;
        float: left;
        margin-left: -1px;/*这样就压着了，会避免两个重叠的时候，很粗*/
        position: relative;
        /*z-index: 0;*/
    }
    div:hover {
        border: 1px solid #f40;
        /*position: relative; 相对定位比标准流高一级 浮在上面的*/
        z-index: 1;
        /*可以通过relative和z-index实现提升层*/
    }
    </style>
</head>
<body>
    <div></div>
    <div></div>
    <div></div>
    <div></div>
    <div></div>
</body>
</html>

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    div {
        width: 200px;
        height: 200px;
        background-color: pink;
        /*display: 显示*/
        /*display: none; 隐藏某个元素   ==  display: block 显示某个元素 不保留位置*/
        /*visibility: visible;  显示某个元素*/
        visibility: hidden;  /*隐藏某个元素  保留位置的！！！！！！！！！！！！！！！！！  */
    }
    p {
        width: 200px;
        height: 400px;
        background-color: purple;
    }
    </style>
</head>
<body>
    <div></div>
    <p>放个屁</p>
</body>
</html>
PS: 经过显示播放的例子

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    a {
        display: block;
        width: 448px;
        height: 252px;
        margin: 100px;
        position: relative;
    }
    .mask {
        width: 100%;
        height: 100%;
        background:rgba(0, 0, 0, .4) url(images/arr.png) no-repeat center;
        position: absolute;
        top: 0;
        left: 0;
        display: none; /* 首先正常情况下 是隐藏的*/
    }

    /*什么时候出来？  鼠标放到 a 身上    是a 里面的 mask 出来*/
    a:hover .mask { /*：hover  鼠标经过a 然后 a 里面的 mask 就显示出来 所以这里用 后代选择器*/ 
        display: block; /*显示出来*/
    }


    </style>
</head>
<body>
    <a href="#">
        <img src="images/tudou.jpg" height="252" width="448" alt="">
        <div class="mask"></div>
    </a>
    <a href="#">
        <img src="images/tudou.jpg" height="252" width="448" alt="">
        <div class="mask"></div>
    </a>
    <a href="#">
        <img src="images/tudou.jpg" height="252" width="448" alt="">
        <div class="mask"></div>
    </a>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    li {
         /*cursor: pointer; 让我们的鼠标样式变成小手*/
        /*cursor: text;  让我们的鼠标样式变成选择*/
        cursor: default; /* 让我们的鼠标样式小白*/
    }
    p {
        width: 100px;
        height: 100px;
        background-color: pink;
        cursor: move;  /*鼠标变成十字架样子*/
    }
    </style>
</head>
<body>
    <ul>
        <li>文字效果</li>
        <li>文字效果</li>
        <li>文字效果</li>
        <li>文字效果</li>
        <li>文字效果</li>
        <li>文字效果</li>
    </ul>
    <p></p>
    <ul>
  <li style="cursor:default">我是小白</li>
  <li style="cursor:pointer">我是小手</li>
  <li style="cursor:move">我是移动</li>
  <li style="cursor:text">我是文本</li>
</ul>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    input {
        outline: none;  /*取消轮廓线的做法，下面是为了统一其他的浏览器显示状态*/
        border: 1px solid #ccc;
        width: 200px;
        height: 25px;
        background: url(images/s.png) no-repeat 180px center;
    }
    textarea {
        resize: none;  /*防止拖拽*/
        outline: none;  /*取消蓝色边框*/
    }
    </style>
</head>
<body>
    <input type="text">
    <textarea name="" id="" cols="30" rows="10"></textarea>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
img {
/*vertical-align: middle;*/   让字和图片防止有多余的白边
display: block;
}
div {
border: 2px solid red;
}
</style>
</head>
<body>
<div>
<img src="images/tudou.jpg" height="252" width="448" alt=""> 
<!-- my name is 强哥 -->
</div>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    * {
        margin: 0;
        padding: 0;
    }
    body {
        padding: 30px;
    }
    li {
        list-style: none;
        width: 200px;
        height: 30px;
        border: 1px solid pink;
        white-space: nowrap;/*强制一行显示*//*1.强制在同一行内显示所有文本，直到文本结束或者遭遇br标签对象才换行*/
        overflow: hidden;  /* 2. 超出的部分 隐藏*/
        text-overflow: ellipsis;  /* 3. 溢出的部分用省略号替代*/
        line-height: 30px;
    }
    </style>
</head>
<body>
    <ul>
        <li>文字内容文字内容文字内容文字内容文字内容</li>
    <li>文字内容文字内容文字内容文字内容文字内容</li>
    <li>文字内容文字内容文字内容文字内容文字内容</li>
    <li>文字内容文字内容文字内容文字内容文字内容</li>
    <li>文字内容文字内容文字内容文字内容文字内容</li>
    </ul>
</body>
</html>

PS: 说白了，就是一张图的不同位置显示

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    h3 {
        background: url(images/index.png) no-repeat -2px -184px;
        width: 26px;
        height: 26px;
    }
    div {
        width: 236px;
        height: 106px;
        background: url(images/index.png) no-repeat 0 -350px;
    }
    </style>
</head>
<body>
    <h3></h3>
    <div></div>
</body>
</html>PS:自定义自己的名字

PS:起就是就是动态增长，也是一张图的来回应用，只是一种形式

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    a {
        margin: 100px;
        height: 33px;
        display: inline-block;
        background: url(images/to.png) no-repeat;
        color: #fff;
        text-decoration: none;
        line-height: 33px;/*居中对齐*/
        padding-left: 15px;
    }
    span {
        display: inline-block;
        height: 33px;
        background: url(images/to.png) no-repeat right;
        padding-right: 15px;
    }
    </style>
</head>
<body>
    <a href="#">
        <span>首页</span>
    </a>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    @font-face {  /*声明字体  引用字体*/
      font-family: "icomoon";  /*我们自己起名字可以*/
      src:  url('fonts/icomoon.eot?7kkyc2');
      src:  url('fonts/icomoon.eot?7kkyc2#iefix') format('embedded-opentype'),
        url('fonts/icomoon.ttf?7kkyc2') format('truetype'),
        url('fonts/icomoon.woff?7kkyc2') format('woff'),
        url('fonts/icomoon.svg?7kkyc2#icomoon') format('svg');
      font-style: normal;  /*倾斜字体正常*/
}
    span, em {
        font-family: "icomoon"; 
        font-size: 100px;
        color: pink;
        font-style: normal;
    }
    .car {
        font-family: "icomoon";
    }
    /*京东 CSSRESET css 初始化*/
   /* *{margin:0;padding:0}
    em,i{font-style:normal}
    li{list-style:none}
    img{border:0;vertical-align:middle}
    button{cursor:pointer}
    a{color:#666;text-decoration:none}
    a:hover{color:#c81623}
    button,input{font-family:Microsoft YaHei,tahoma,arial,Hiragino Sans GB,\5b8b4f53,sans-serif}

    body{
         background-color:#fff;font:12px/1.5 Microsoft YaHei,tahoma,arial,Hiragino Sans GB,\5b8b4f53,sans-serif;color:#666}
         .hide,.none{display:none}

         .clearfix:after{visibility:hidden;clear:both;display:block;content:".";height:0}.clearfix{*zoom:1}*/


    </style>
</head>
<body>


    <div>行高不带单位</div>
    <span></span>
    <em></em>
    <div class="car"></div>
    <button>123</button>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>京东(JD.COM)-正品低价、品质保障、配送及时、轻松购物！</title>
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    <meta name="Keywords" content="网上购物,网上商城,手机,笔记本,电脑,MP3,CD,VCD,DV,相机,数码,配件,手表,存储卡,京东" />
    <link rel="shortcut icon" href="favicon.ico"  type="image/x-icon"/><!-- 浏览器边上的图标 -->
    <!-- normalize 里面css 初始化 针对浏览器 -->
    <link rel="stylesheet" href="css/normalize.css" />
    <!-- base 里面只写公共样式 是对京东网页 头部和底部样式 -->
    <link rel="stylesheet" href="css/base.css" />
    <!-- 京东首页的css  只写首页的 独有的-->
    <link rel="stylesheet" href="css/index.css">
</head>
<body>
    <!-- 京东顶部开始，因为这有个关闭按钮，所以叫jenvent -->
    <div class="J_event">
        <a href="#" class="w">
            <i></i>
        </a>
    </div>
    <!-- 京东顶部结束 -->
    <!-- 快捷导航模块制作开始 -->
    <div class="shortcut">
        <div class="w">
            <ul class="fl">
                <li> 
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                        我的京东
                    </a>
                    <i></i>
                </li>
                <li class="spacer"></li>
                <li>
                    <a href="#">
                        京东会员
                    </a>
                </li>
                <li class="spacer"></li>
                <li>
                    <a href="#">
                        企业采购
                    </a>
                </li>
                <li class="spacer"></li>
                <li class="dropdown">
                    <a href="#">
                        客户服务
                    </a>
                    <i></i>
                </li>
                <li class="spacer"></li>
                <li class="dropdown">
                    <a href="#">
                        网站导航
                    </a>
                    <i></i>
                </li>
                <li class="spacer"></li>
                <li style="position: relative; z-index: 1;">
                    <a href="#">
                        手机京东
                    </a>
                    <div class="erweima">
                        <img src="images/erweima.png" alt="">
                    </div>
                </li>
            </ul>
        </div>
    </div>
    <!-- 快捷导航模块制作结束 -->
    <!-- header 部分 start -->
    <div class="header">
        <div class="w inner">
             <!-- logo 部分 -->
             <div class="logo">
                 <h1>
                     <a href="#" title="京东网">京东</a>
                 </h1>
             </div>
             <!-- 搜索部分 -->
             <div class="search">
                 <input type="text" value="单反相机">
                 <button>
                     <i></i>
                 </button>
                 <em></em>
             </div>
             <!-- 热词部分 -->
             <div class="hotwords">
                 <a href="#" class="style-red">学生专享</a>
                 <a href="#">300减160</a>
                 <a href="#">七折返场</a>
                 <a href="#">骑行运动</a>
                 <a href="#">家电榜单</a>
                 <a href="#">无损播放器</a>
                 <a href="#">汽车脚垫</a>
                 <a href="#">巧克力</a>
                 <a href="#">铝合金门窗</a>
             </div>
                <!-- 购物车 -->
             <div class="myCar">
                 <i></i>
                 <a href="#">我的购物车</a>
                 <s>0</s>
             </div>
            <!-- 电脑 -->
            <div class="computer">
                <a href="#">
                    <img src="images/computer.jpg" height="40" width="190" alt="">
                </a>
            </div>
        </div>
    </div>
    <!-- header 部分 end-->


</body>
</html>

/*
* @Author: andy
* @Date:   2017-12-13 11:19:05
* @Last Modified by:   andy
* @Last Modified time: 2017-12-13 11:19:05
PS:这里只写公共样式;
*/
/* 版心 */
.w {
      1190px;
     margin: auto;
}
.fr {
    float: right;
}
.fl {
    float: left;
}
.style-red {
    color: #f10215!important;
}
li {
    list-style: none;
}
ul {
    margin: 0;
    padding: 0;
}
input, button {
    padding: 0;
    border: 0;
}
a {
    text-decoration: none;
}
@font-face {
  font-family: 'icomoon';
  src:  url('../fonts/icomoon.eot?axvffw');
  src:  url('../fonts/icomoon.eot?axvffw#iefix') format('embedded-opentype'),
    url('../fonts/icomoon.ttf?axvffw') format('truetype'),
    url('../fonts/icomoon.woff?axvffw') format('woff'),
    url('../fonts/icomoon.svg?axvffw#icomoon') format('svg');
  font-weight: normal;
  font-style: normal;
}
body {
    background-color: #F6F6F6;
}
/* 京东 顶部 start */
.J_event {
    background-color: #000;
}
.J_event a {/*就是那个图片链接*/
    display: block;
    height: 80px;
    background: url(../images/top.jpg) no-repeat;
    position: relative;
}
.J_event a i {/*就是那个 x 号*/
     20px;
    height: 20px;
    /* background-color: pink; */
    position: absolute;
    right: 0;
    top: 5px;
    font-family: "icomoon";
    font-style: normal;
    text-align: center;
    line-height: 20px;
    color: #fff;
    background: rgba(0,0,0,0.4);
}
/* 京东 顶部 end */

.shortcut {
    height: 30px;
    line-height: 30px;/*垂直居中*/
    background-color: #E3E4E5;
    border-bottom: 1px solid #DDDDDD;
    color: #9D9D9D;
    font-size: 12px;
}
.shortcut a {
    color: #9D9D9D;
    font-size: 12px;
    text-decoration: none;
}
.shortcut a:hover {
    color: #c81623;
}
.pos {
    font-family: "icomoon";
    font-style: normal;
    font-size: 14px;
    color: #f10215;
}
.shortcut .fl li {
    margin-left: 200px;
    height: 30px;
    overflow: hidden;
}
.shortcut .fr li {
    float: left;
}
.spacer {/*快捷方式的小竖线，用li实现*/
     1px;
    height: 10px;
    background-color: #ccc;
    margin: 10px 10px 0;
}
.dropdown {/*我的京东V*/
    padding-right: 15px;
    position: relative;
}
.dropdown i {
    font-family: "icomoon";
    font-style: normal;
    font-size: 16px;
    position: absolute;
    right: -2px;
    top: -2px;
}
.erweima {
     60px;
    height: 60px;
    border: 1px solid #ccc;
    padding: 3px;
    position: absolute;
    left: -8px;
    top: 35px;
}
/*  header 部分 start  */
.header {
    height: 140px;
}
.inner {
    height: 140px;
    background-color: pink;
    position: relative;
}
/*  header 部分 end  */
.logo {
     190px;
    height: 170px;
    position: absolute;
    top: -30px;
    left: 0;
    background-color: purple;
    box-shadow: 0 -12px 10px rgba(0,0,0,.2);
}
.logo h1 {
    margin: 0;
}
.logo a {
    display: block;
     190px;
    height: 170px;
    background: url(../images/logo.jpg) no-repeat;
    text-indent: -99999px;/*让logo  h1 文字消失*/
    overflow: hidden;
}
.search {
     550px;
    height: 35px;
    position: absolute;
    top: 25px;
    left: 320px;
}
.search input {
     493px;
    height: 33px;
    border: 1px solid #F10215;
    padding-left: 5px;
    outline: none; /* 取消蓝色边框 */
    color: #989898;
    float: left;
}
.search button {
     50px;
    height: 35px;
    background-color: #F10215;
    float: left;
    cursor: pointer; /* 鼠标变成小手 */
    outline: none;
}
.search i {
    font-family: "icomoon";
    color: #fff;
    font-style: normal;
    font-size: 16px;
}
.search em {
    position: absolute;
    top: 10px;
    right: 65px;
     19px;
    height: 15px;
    cursor: pointer;
    background: url(../images/sprite-search.png) no-repeat;
}
.search em:hover {
    background-position: -30px 0;
}

.hotwords {
    position: absolute;
    top: 70px;
    left: 320px;
}
.hotwords a {
    color: #9E9B99;
    font-size: 12px;
}
.hotwords a:hover {
    color: #f10215;
}
.myCar {
     188px;
    height: 33px;
    border: 1px solid #ccc;
    position: absolute;
    top: 25px;
    right: 100px;
    text-align: center;
    line-height: 33px;
}
.myCar a {
    font-size: 12px;
    color: #f10215;

}
.myCar i {
    font-family: "icomoon";
    font-style: normal;
    color: #f10215;
    margin-right: 3px;
}
.myCar s {
    position: absolute;
    top: 5px;
    left: 140px;
    text-decoration: none;
    background-color: #f10215;
    height: 16px;
    line-height: 16px;
    font-size: 12px;
    padding: 0 3px;
    border-radius: 7px;
    color: #fff;
}
.computer {
    position: absolute;
    right: 0;
    bottom: 10px;
}

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
    fieldset {
        width: 300px;
    }
    </style>
</head>
<body>
    <input type="text" value="请输入明星" list="star"/>
    <datalist id="star">
        <option value="刘德华">刘德华</option>
        <option value="刘若英">刘若英</option>
        <option value="刘晓庆">刘晓庆</option>
        <option value="戚薇">戚薇</option>
        <option value="戚继光">戚继光</option>
    </datalist>
    <fieldset>
        <legend>用户登录</legend>
        用户名： <input type="text"> <br>
        密码： <input type="password">
    </fieldset>    
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
    <form action="">
        用户名： <input type="text" placeholder="请输入用户名" autofocus> <br />
        上传头像： <input type="file" name="" id="" multiple > <br />
        昵称：  <input type="text" required accesskey="s"> <br />

        <input type="submit" value="提交按钮">
        
    </form>
</body>
</html>

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原文地址：https://www.cnblogs.com/bee-home/p/10606460.html