CSS属性2_盒子模型和CSS案例_注册页面

CSS属性2_盒子模型：

1．盒子模型:控制布局

margin :外边距

padding :内边距

默认情况下内边距会影响整个盒子的大小

box-sizing: border-box;设置盒子的属性，让width和height就是最终盒子的大小

float :浮动

left

right

代码实现：

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>CSS盒子模型属性</title>
    <style type="text/css">
        div{
            /*border 边距*/
            border: 1px solid red;
            /*width 宽度*/
            width: 100px;
        }
        .div1{
            /*width 宽度*/
            width: 100px;
            /*height 高度*/
            height: 100px;
            /*外边距*/
            /* margin： 50px; */
        }
        .div2{
            /*width 宽度*/
            width: 200px;
            /*height 高度*/
            height: 200px;
            /*padding 内边距*/
            padding: 50px;
            /*
                设置盒子的属性，让width和height就是最终盒子的大小
             */
            box-sizing: border-box;
        }
        .div3{
            /*float 左浮动*/
            float: left;
        }
        .div4{
            /*float 左浮动*/
            float: left;
        }
        .div5{
            /*float 右浮动*/
            float: right;
        }
    </style>
</head>
<body>
    <!--div块标签 class选择器-->
    <div class="div2">
        <div class="div1"></div>
    </div>
    <!--div块标签 class选择器-->
    <div class="div3">aaaaa</div>
    <!--div块标签 class选择器-->
    <div class="div4">bbbbb</div>
    <!--div块标签 class选择器-->
    <div class="div5">ccccc</div>
</body>
</html>

 

 

 

 

 

CSS案例_注册页面：

完成以下注册界面：

 

 代码实现：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        *{
            margin: 0px;
            padding: 0px;
            box-sizing: border-box;
        }
        body{
            background: url("../img/http.keji.jpg") no-repeat center;
        }
        .rg_layout{
            width: 1000px;
            height: 500px;
            border: 8px solid #EEEEEE;
            background-color: white;
            /*让div水平居中*/
            margin: auto;
            margin-top: 15px;
        }
        .rg_left{
            /*border: 1px solid red;*/
            float: left;
            margin: 15px;
        }
        .rg_left > p:first-child{
            color: #FFD026;
            font-size: 20px;
        }
        .rg_left > p:last-child{
            color: #A6A6A6;
            font-size: 20px;
        }
        .rg_center{
            /*border: 1px solid red;*/
            float: left;
            width: 600px;
        }
        .rg_right{
            /*border: 1px solid red;*/
            float: right;
            margin: 15px;
        }
        .rg_right > p:first-child{
            font-size: 15px;
        }
        .rg_right p a{
            color: pink;
        }
        .td_left{
            width: 100px;
            text-align: right;
            height: 45px;
        }
        .td_right{
            padding-left: 50px;
        }
        #username,#password,#email,#name,#tel,#birthday,#checkcode{
            width: 251px;
            height: 32px;
            border: #A6A6A6 1px solid;
            /*设置圆角边框*/
            border-radius: 5px;
            padding-left: 10px;
        }
        #checkcode{
            width: 110px;
        }
        #img_check{
            height: 32px;
            vertical-align: middle;
        }
        #btn_sub{
            width: 150px;
            height: 40px;
            background-color: #FFD026;
            border: #FFD026 1px solid;
        }
    </style>
</head>
<body>
<div class="rg_layout">
    <div class="rg_left">
        <p>新用户注册</p>
        <p>USER REGISTER</p>
    </div>
    <div class="rg_center">
        <div class="rg_form">
            <!--定义表单 form-->
            <form action="#" method="post">
                <table>
                    <tr>
                        <td class="td_left"><label for="username">用户名</label></td>
                        <td class="td_right"><input type="text" name="username" id="username" placeholder="请输入用户名"></td>
                    </tr>

                    <tr>
                        <td class="td_left"><label for="password">密码</label></td>
                        <td class="td_right"><input type="password" name="password" id="password" placeholder="请输入密码"></td>
                    </tr>

                    <tr>
                        <td class="td_left"><label for="email">Email</label></td>
                        <td class="td_right"><input type="email" name="email" id="email" placeholder="请输入邮箱"></td>
                    </tr>

                    <tr>
                        <td class="td_left"><label for="name">姓名</label></td>
                        <td class="td_right"><input type="text" name="name" id="name" placeholder="请输入姓名"></td>
                    </tr>

                    <tr>
                        <td class="td_left"><label for="tel">手机号</label></td>
                        <td class="td_right"><input type="text" name="tel" id="tel" placeholder="请输入手机号"></td>
                    </tr>

                    <tr>
                        <td class="td_left"><label>性别</label></td>
                        <td class="td_right">
                            <input type="radio" name="gender" value="male"> 男
                            <input type="radio" name="gender" value="female"> 女
                        </td>
                    </tr>

                    <tr>
                        <td class="td_left"><label for="birthday">出生日期</label></td>
                        <td class="td_right"><input type="date" name="birthday" id="birthday" placeholder="请输入出生日期"></td>
                    </tr>

                    <tr>
                        <td class="td_left"><label for="checkcode" >验证码</label></td>
                        <td class="td_right"><input type="text" name="checkcode" id="checkcode" placeholder="请输入验证码">
                            <img src="../img/5706105.png" id="img_check">
                        </td>
                    </tr>

                    <tr>
                        <td colspan="2" align="center"><input type="submit" value="注册" id="btn_sub"></td>
                    </tr>
                </table>
            </form>
        </div>
    </div>
    <div class="rg_right">
        <p>已有账号?<a href="#">立即登录</a></p>
    </div>
</div>
</body>
</html>

 

posted @ 2022-11-17 16:22  冰灵IT  阅读(42)  评论(0)    收藏  举报