会员可以在此提问,百战程序员老师有问必答
对大家有帮助的问答会被标记为“推荐”
看完课程过来浏览一下别人提的问题,会帮你学得更全面
截止目前,同学们一共提了 132358个问题

elc-box中最后一个盒子中 浏览更多 设置宽高不生效 字体图标大小也不生效(字体图标不显示这个问题也有疑问,)

           <!-- 家电部分 -->
            <div class="elc">
                <div class="elc-nav">
                    <a href="#">
                        <img src="../images/41d16e66381cfeda7b6b39ab67678d5e.jpg" alt="">  
                    </a>
                </div>     
                <h2 class="title">家电
                    <a href="#">
                        <span>热门</span>
                        <span>电视影音</span>
                    </a>
                </h2>
                <div class="elc-box">
                    <div class="items-2">
                        <a href="#">
                            <img src="../images/116fc43816b87192be4e67cf762e8da5.jpeg" alt="">
                         </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/03a9e7e96a09d256ca1badeec186c859.jpg" alt=""  class="img1">
                                <h3 class="name2">小米全面屏电视65英寸 E65X </h3>
                                <p class="desc2">全面屏设计</p>
                                <p class="price2">2999元<del class="original">3299元</del></p>
                        </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/20d36fbaa18625e4fe507af31e4e9f83.jpg" alt="" class="img1">
                            <h3 class="name2">全面屏电视E43K  </h3>
                            <p class="desc2">全面屏设计,海量内容</p>
                            <p class="price2">1349元<del class="original">1500元</del></p>
                        </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/9d8674cd21c486feff5328772ab9cf01.jpg" alt="" class="img1">
                            <h3 class="name2">小小米电视4A 70英寸 </h3>
                            <p class="desc2">大屏更享受</p>
                            <p class="price2">3599元<del class="original">3900元</del></p>
                        </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/6bed167fc905bab57dee478bcf1e5e0d.JPG" alt="" class="img1">
                            <h3 class="name2">米家互联网对开门冰箱 540L </h3>
                            <p class="desc2">重磅新品福利特惠</p>
                            <p class="price2">2999元<del class="original">3600元</del></p>
                        </a>
                    </div>
                    <div class="items-2">
                        <a href="#">
                            <img src="../images/dfbdabe36b2d630d57a015e6fb5eb3ea.jpg" alt="">
                        </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/b8c63a2024528fe5410ebe669b7d2407.jpg" alt="" class="img1">
                            <h3 class="name2">Redmi全自动波轮洗衣机1A 8kg</h3>
                            <p class="desc2">一键操作,父母都爱用</p>
                            <p class="price2">849元<del class="original">899元</del></p>
                        </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/74e573c4c0d89048392d14831cc507d5.jpg" alt="" class="img1">
                            <h3 class="name2">Air 13.3" 2019款 </h3>
                            <p class="desc2">新一代独立显卡</p>
                            <p class="price2">6299元</p>
                        </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/7e5f89adf98ab3fccb34012b5209cd58.jpg" alt="" class="img1">
                            <h3 class="name2">米家互联网烟灶套装(天然气)</h3>
                            <p class="desc2">点火排烟,风随火动</p>
                            <p class="price2">2298元</p>
                        </a>
                    </div>
                    <div class="items-last">
                        <div>
                            <a href="#">
                                <img src="../images/1612c93ad4756215774a0dbec7a81bb2.jpg" alt="">
                                <h3 class="name2">米家电烤箱 </h3>
                                <p class="price2">279元</p>
                            </a>
                        </div>
                        <div>
                            <a href="#">
                                <div class="more">浏览更多
                                    <small>电视影音</small>
                                </div>
                                <i class="icontfont">&#xe619;</i>
                            </a>
                        </div>
                    </div>
                </div>
            </div>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>小米广告部分</title>
    <link rel="icon" href="../images/favicon.ico">
    <link rel="stylesheet" href="../css/reset.css">
    <!-- <link rel="stylesheet" href="../css/demo.css "> -->
    <link rel="stylesheet" href="小米.css">
</head>
<body>
 <div class="content">
        <div class="wrap">
           <!-- 家电部分 -->
            <div class="elc">
                <div class="elc-nav">
                    <a href="#">
                        <img src="../images/41d16e66381cfeda7b6b39ab67678d5e.jpg" alt="">  
                    </a>
                </div>     
                <h2 class="title">家电
                    <a href="#">
                        <span>热门</span>
                        <span>电视影音</span>
                    </a>
                </h2>
                <div class="elc-box">
                    <div class="items-2">
                        <a href="#">
                            <img src="../images/116fc43816b87192be4e67cf762e8da5.jpeg" alt="">
                         </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/03a9e7e96a09d256ca1badeec186c859.jpg" alt=""  class="img1">
                                <h3 class="name2">小米全面屏电视65英寸 E65X </h3>
                                <p class="desc2">全面屏设计</p>
                                <p class="price2">2999元<del class="original">3299元</del></p>
                        </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/20d36fbaa18625e4fe507af31e4e9f83.jpg" alt="" class="img1">
                            <h3 class="name2">全面屏电视E43K  </h3>
                            <p class="desc2">全面屏设计,海量内容</p>
                            <p class="price2">1349元<del class="original">1500元</del></p>
                        </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/9d8674cd21c486feff5328772ab9cf01.jpg" alt="" class="img1">
                            <h3 class="name2">小小米电视4A 70英寸 </h3>
                            <p class="desc2">大屏更享受</p>
                            <p class="price2">3599元<del class="original">3900元</del></p>
                        </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/6bed167fc905bab57dee478bcf1e5e0d.JPG" alt="" class="img1">
                            <h3 class="name2">米家互联网对开门冰箱 540L </h3>
                            <p class="desc2">重磅新品福利特惠</p>
                            <p class="price2">2999元<del class="original">3600元</del></p>
                        </a>
                    </div>
                    <div class="items-2">
                        <a href="#">
                            <img src="../images/dfbdabe36b2d630d57a015e6fb5eb3ea.jpg" alt="">
                        </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/b8c63a2024528fe5410ebe669b7d2407.jpg" alt="" class="img1">
                            <h3 class="name2">Redmi全自动波轮洗衣机1A 8kg</h3>
                            <p class="desc2">一键操作,父母都爱用</p>
                            <p class="price2">849元<del class="original">899元</del></p>
                        </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/74e573c4c0d89048392d14831cc507d5.jpg" alt="" class="img1">
                            <h3 class="name2">Air 13.3" 2019款 </h3>
                            <p class="desc2">新一代独立显卡</p>
                            <p class="price2">6299元</p>
                        </a>
                    </div>
                    <div class="items-1">
                        <a href="#">
                            <img src="../images/7e5f89adf98ab3fccb34012b5209cd58.jpg" alt="" class="img1">
                            <h3 class="name2">米家互联网烟灶套装(天然气)</h3>
                            <p class="desc2">点火排烟,风随火动</p>
                            <p class="price2">2298元</p>
                        </a>
                    </div>
                    <div class="items-last">
                        <div>
                            <a href="#">
                                <img src="../images/1612c93ad4756215774a0dbec7a81bb2.jpg" alt="">
                                <h3 class="name2">米家电烤箱 </h3>
                                <p class="price2">279元</p>
                            </a>
                        </div>
                        <div>
                            <a href="#">
                                <div class="more">浏览更多
                                    <small>电视影音</small>
                                </div>
                                <i class="icontfont">&#xe619;</i>
                            </a>
                        </div>
                    </div>
                </div>
            </div>
         </div>
    </div>


WEB前端全系列/第一阶段:HTML5+CSS3模块/CSS3新特性 16楼

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        #container {
            display: grid;
            grid-template-columns: 200px 200px 200px;
            grid-template-rows: 200px 200px 200px 200px 200px 200px;
            grid-template-areas: "item1 item1 item2"
                                 "item1 item1 item3"
                                 "item3 item3 item3"
                                 "item4 item5 item6"
                                 "item7 item8 item9"
                                 "item9 item9 item9";
        }

        .item{
            font-size: 30px;
            border: 1px solid #e5e4e9;
            text-align: center;
            line-height: 200px;
        }

        .item-1 {
            grid-area: item1;
            background-color: #ef342a;
        }

        .item-2 {
            grid-area: item2;
            background-color: #f68f26;
        }

        .item-3 {
            grid-area: item3;
            background-color: #4ba946;
        }

        .item-4 {
            grid-area: item4;
            background-color: #0376c2;
        }

        .item-5 {
            grid-area: item5;
            background-color: #c077af;
        }

        .item-6 {
            grid-area: item6;
            background-color: #f8d29d;
        }

        .item-7 {
            grid-area: item7;
            background-color: #b5a87f;
        }

        .item-8 {
            grid-area: item8;
            background-color: #d0e4a9;
        }

        .item-9 {
            grid-area: item9;
            background-color: #4dc7ec;
        }
    </style>
</head>

<body>
    <div id="container">
        <div class="item item-1">1</div>
        <div class="item item-2">2</div>
        <div class="item item-3">3</div>
        <div class="item item-4">4</div>
        <div class="item item-5">5</div>
        <div class="item item-6">6</div>
        <div class="item item-7">7</div>
        <div class="item item-8">8</div>
        <div class="item item-9">9</div>
    </div>
</body>

</html>

为什么我的代码运行出来效果不对

WEB前端全系列/第一阶段:HTML5+CSS3模块/CSS3新特性 17楼

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>小米</title>
    <link rel="stylesheet" href="./css/reset.css">
    <link rel="stylesheet" href="./css/mi.css">
    <link rel="stylesheet" href="./css/iconfont/iconfont.css">
</head>
<body>

    <!-- 头部开始 -->
    <div class="header">
        <a href="#">
            <img src="./images/top.jpg" alt="">
        </a>
    </div>
    <!-- 头部结束 -->
    <!-- 黑色导航部分开始 -->
    <!-- 
        黑色导航实现步骤:
            1. 主容器,背景黑色
            2. 内容部分居中显示,容器处理
            3. 左导航和右导航
            4. 动画
     -->
    <div class="black-nav">
        <div class="wrap">
            <ul class="black-nav-left">
                <li><a href="#">小米商城</a><span>|</span></li>
                <li><a href="#">MIUI</a><span>|</span></li>
                <li><a href="#">loT</a><span>|</span></li>
                <li><a href="#">云服务</a><span>|</span></li>
                <li><a href="#">天星数科</a><span>|</span></li>
                <li><a href="#">有品</a><span>|</span></li>
                <li><a href="#">小爱开放平台</a><span>|</span></li>
                <li><a href="#">企业团购</a><span>|</span></li>
                <li><a href="#">资质证照</a><span>|</span></li>
                <li><a href="#">协议规则</a><span>|</span></li>
                <li>
                    <a href="#">下载APP</a>
                    <span>|</span>
                    <div class="download">
                        <img src="./images/download.png" alt="">
                        <p>小米商城APP</p>
                    </div>
                    <div class="stri"></div>
                </li>
                <li><a href="#">智能生活</a><span>|</span></li>
                <li><a href="#">SelectLocation</a><span>|</span></li>
            </ul>
            <ul class="black-nav-right">
                <li><a href="#">登录</a><span>|</span></li>
                <li><a href="#">注册</a><span>|</span></li>
                <li><a href="#">消息通知</a><span>|</span></li>
                <li class="cart">
                    <a href="#">
                        <i class="iconfont">&#xe607;</i>
                        <i>购物车(0)</i>
                    </a>
                    <div class="cart-list">
                        购物车中还没有商品,赶紧选购吧
                    </div>
                </li>
            </ul>
        </div>
    </div>
    <!-- 黑色导航部分结束 -->
    <!-- 白色导航开始 -->
    <div class="white-nav">
        <div class="wrap">
            <div class="logo">
                <img src="./images/mi-home.png" alt="" class="mi-home">
                <img src="./images/mi-logo.png" alt="" class="mi-logo">
            </div>
            <div class="nav-bar">
                <ul>
                    <li><a href="#"><img src="./images/zzxsh.gif" alt=""></a></li>
                    <li>
                        <a href="#">小米手机</a>
                        <div class="nav-bar-list">
                            <div class="wrap">
                                <ul>
                                    <li>
                                        <a href="#">
                                            <div class="img-box">
                                                <img src="./images/phone.png" alt="">
                                            </div>
                                            <p class="name">小米10至尊纪念版</p>
                                            <p class="price">5200元</p>
                                        </a>
                                    </li>
                                    <li>
                                        <a href="#">
                                            <div class="img-box">
                                                <img src="./images/phone.png" alt="">
                                            </div>
                                            <p class="name">小米10至尊纪念版</p>
                                            <p class="price">5200元</p>
                                        </a>
                                    </li>
                                    <li>
                                        <a href="#">
                                            <div class="img-box">
                                                <img src="./images/phone.png" alt="">
                                            </div>
                                            <p class="name">小米10至尊纪念版</p>
                                            <p class="price">5200元</p>
                                        </a>
                                    </li>
                                    <li>
                                        <a href="#">
                                            <div class="img-box">
                                                <img src="./images/phone.png" alt="">
                                            </div>
                                            <p class="name">小米10至尊纪念版</p>
                                            <p class="price">5200元</p>
                                        </a>
                                    </li>
                                </ul>
                            </div>
                        </div>
                    </li>
                    <li><a href="#">电视</a></li>
                    <li><a href="#">笔记本</a></li>
                    <li><a href="#">家电</a></li>
                    <li><a href="#">路由器</a></li>
                    <li><a href="#">智能硬件</a></li>
                    <li><a href="#">服务</a></li>
                    <li><a href="#">社区</a></li>
                </ul>
            </div>
            <div class="search">
                <input type="text" placeholder="元宇宙">
                <button class="iconfont">&#xe63d;</button>
            </div> 
        </div>
    </div>
    <!-- 白色导航结束 -->
   
</body>
</html>
老师为什么白色导航下居中不了啊,还有黑色导航

WEB前端全系列/第一阶段:HTML5+CSS3模块/商城官网项目 18楼
WEB前端全系列/第一阶段:HTML5+CSS3模块/CSS应用技巧 19楼

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
    *{
        margin: 0 auto;
        
    }

    .container{
        width: 1200px;
        background-color: rgb(173, 151, 200);
        margin:20px auto;
        padding-bottom: 10px;
        border-radius: 20px;
        
    }

    .t-box{
        display: flex;
        width: 1160px;
        height: 50px;
        align-items: center;
        justify-content: flex-start;
    }

    .b-box{
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        width: 1160px;
        height: 150px;
        background-color: white;
        border-radius: 20px;
        background-attachment: scroll; /*左右滚动*/
        
        
    }
    
    .rs{
        font-weight:800;
        font-size: larger;
        color: rgb(25, 24, 34);
        margin-left: 13px;
       
        
    }
    
    .rs span{
        padding-left: 15px;
        font-size: medium;
        font-family: "楷体";
    }

    .btn{
        margin-right: 15px;
        border-radius: 25px;
        padding: 5px 10px;
        border: none;
        letter-spacing: 2px;
        color: rgb(92, 80, 118);
    }

    .t-txt,.b-txt{
        display: flex;
        align-items: center;
        justify-content: space-around;
        white-space: nowrap;
        height: 70px;
        width: 1150px;
        border: 1px solid;
        /* white-space: nowrap; */
        background-attachment: auto; /*左右滚动*/
        
    }

    .b-box .txt{
        
        line-height: 70px;
        box-sizing: border-box; /*依旧变形*/
        width: 100px;
        height: 45px;
        background-color: rgb(173, 151, 200);
        margin-right: 10px;
        
    }


   </style>
</head>
<body>
   
    <div class="container">
        <div class="t-box">
            <p class="rs">粉丝热搜<span>大家都在看</span></p>  
            <button class="btn">查看全部 ❥</button>      
        </div>
        <div class="b-box">
            <div class="t-txt">
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
            </div>
            <div class="b-txt">
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
                <div class="txt"></div>
            </div>
           
        </div>
    </div>

</body>
</html>

如上,底部内容位置里面有好多小盒子,我想让超出部分横向滚动,但是好像不行,添加新的盒子其他盒子就会挤压变形平分区域没法超出屏幕横向滚动。请老师指点我该怎么写

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