Flex父级不会扩展到子级的高度

分类：编程问答

如何解决Flex父级不会扩展到子级的高度

这可能是一个业余问题，因为我刚开始使用Flexbox，但是在创建以下布局时遇到了困难。

https://jsfiddle.net/wp6hsnjo/

我的目标是两行（Main位于顶部，Footer位于底部），然后在Main中包含3列，第一列和最后一列固定，中间的列填充剩余的空间。我遇到的困难是Main容器将不会继承子元素的高度..这会使粘性页脚陷入困境。有没有一种方法可以使Main div扩展以匹配子元素的高度？我曾尝试过设置溢出和高度设置，但没有成功。

html,body {
    height: 100%;
}

body {
    margin:0;
    padding:0;
    background-color: #f4f3f0;
    box-sizing: border-box;
    font-family: arimo,sans-serif;
    color: #555760;
}


#container {
    max-width:1560px;
    margin: 0 auto;
    display: flex;
    flex-flow: wrap;
    min-height: 100vh;
    flex-direction: column;
}

#main {
    display: flex;
    flex: 1 0 auto;
    height:auto;
}

header {
    padding:30px;
    flex: 0 0 100px;
    order: 1;
}

#logo-container {

}

.logo {
    width:75px;
    margin-top:5px;
    position:fixed;
}

nav {
    width:100px;
    text-align: right;
    flex: 0 0 100px;
    order: 3;
    padding:30px;
}

nav ul {
    list-style-type: none;
    width:100px;
    margin: 0;
    padding: 0;}

.main-nav {
    position:fixed;
    text-transform: uppercase;
    font-size: 12px;
    font-weight: 700;
    color: #222; 
    letter-spacing: 0.3px;
}

.main-nav li {
    margin-bottom:7px;
}

.social-media {
    position: fixed;
    bottom:0;
    margin-bottom:40px;
    text-align: right;
    width: 100px;
}

.social-media-icons {
    width:16px; 
    height:16px; 
    margin-bottom:18px;
}

#page-content {
    margin:30px 0 60px 0;
    flex: 1;
    order: 2; 
}

.portfolio {
    display: flex;
    flex-wrap: wrap;
    padding-bottom:300px;
  }

.square {
    position: relative;
    flex-basis: calc(33.333% - 10px);
    margin: 5px;
    border: 1px solid #ccc;
    box-sizing: border-box;
  }

.span2 {
    position: relative;
    flex-basis: calc(66.666% - 10px);
    margin: 5px;
    border: 1px solid #ccc;
    box-sizing: border-box;
  }

.square::before {
    content: '';
    display: block;
    padding-top: 100%;
  }

.square .content {
    position: absolute;
    top: 0; left: 0;
    height: 100%;
    width: 100%;
  }

footer {
    order: 2;
    margin: 0 0 58px 30px;
    flex-shrink: 0;
    font-size: 12px;
}

.hidden {
    opacity: 0;
  }

@keyframes fade-in {
    from {opacity: 0;}
    to {opacity: 1;}
}
.fade-in-element {
  animation: fade-in 1.4s;
}
<div id="container"> <!-- CONTAINER -->

    <div id="main">
            <header> <!-- HEADER -->
                <div id="logo-container">
                    <img src="images/icons/logo-black.png" alt="Logo" class="logo">
                </div>
            </header> <!-- HEADER END -->


            <nav>
                <ul class="main-nav">
                    <li>Home</li>
                    <li>Archive</li>
                    <li>About</li>
                    <li>Contact</li>
                </ul>

                <ul class="social-media"> 
                </ul>
            </nav>



            <section id="page-content"> <!-- PAGE CONTENT -->

                <div class="portfolio">

                    <div class="span2">
                        <div class="content">
                        </div>
                      </div>

                      <div class="square">
                        <div class="content spread">
                        </div>
                      </div>

                      <div class="square">
                        <div class="content column">
                        </div>
                      </div>

                      <div class="square">
                        <div class="content spread">
                        </div>
                      </div>

                      <div class="square">
                        <div class="content column">
                        </div>
                      </div>
                      <div class="square">
                        <div class="content spread">
                        </div>
                      </div>
                      <div class="span2">
                        <div class="content">
                        </div>
                      </div>



                      <div class="square">
                        <div class="content column">
                        </div>
                      </div>

                      <div class="square">
                        <div class="content spread">
                        </div>
                      </div>

                      <div class="square">
                        <div class="content column">
                        </div>
                      </div>

                </div>

            </section> <!-- PAGE CONTENT END -->


    </div><!-- MAIN END -->


    <footer class="hidden" > <!-- FOOTER -->

        <div id="copyright">&copy; 2020 this is the footer</div>

    </footer> <!-- FOOTER END -->


    </div> <!-- CONTAINER END -->

解决方法

从error C2027: use of undefined type 'std::_Get_function_impl<_Fty>' with [ _Fty=void (__cdecl *)(void) ] C:\PROGRA~2\MIB055~1\2017\Professional\VC\Tools\MSVC\14.16.27023\include\functional(1479): note: see declaration of 'std::_Get_function_impl<_Fty>' with [ _Fty=void (__cdecl *)(void) ] 元素中删除flex-flow: wrap可以解决问题，并从#container元素中删除300px底部填充，以防止产生多余的空间。

.portfolio
var animateHTML = function() {
    var elems;
    var windowHeight;
    
    function init() {
    
    elems = document.querySelectorAll('.hidden');
    windowHeight = window.innerHeight;
    addEventHandlers();
    checkPosition();
    }
    
    function addEventHandlers() {
    window.addEventListener('scroll',checkPosition);
    window.addEventListener('resize',init);
    }
    
    function checkPosition() {
    for (var i = 0; i < elems.length; i++) {
    var positionFromTop = elems[i].getBoundingClientRect().top;
    if (positionFromTop - windowHeight <= 0) {
    elems[i].className = elems[i].className.replace(
    'hidden','fade-in-element'
    );
    }
    
    if ((positionFromTop - windowHeight > 1) || (positionFromTop < 0)) {
    elems[i].className = elems[i].className.replace(
    'fade-in-element','hidden'
    );
    }
    }
    }
    
    return {
    init: init
    };
    };
html,body {
    height: 100%;
}

body {
    margin:0;
    padding:0;
    background-color: #f4f3f0;
    box-sizing: border-box;
    font-family: arimo,sans-serif;
    color: #555760;
}


#container {
    max-width:1560px;
    margin: 0 auto;
    display: flex;
    min-height: 100vh;
    flex-direction: column;
}

#main {
    display: flex;
    flex: 1 0 auto;
}

header {
    padding:30px;
    flex: 0 0 100px;
    order: 1;
}

#logo-container {

}

.logo {
    width:75px;
    margin-top:5px;
    position:fixed;
}

nav {
    width:100px;
    text-align: right;
    flex: 0 0 100px;
    order: 3;
    padding:30px;
}

nav ul {
    list-style-type: none;
    width:100px;
    margin: 0;
    padding: 0;}

.main-nav {
    position:fixed;
    text-transform: uppercase;
    font-size: 12px;
    font-weight: 700;
    color: #222; 
    letter-spacing: 0.3px;
}

.main-nav li {
    margin-bottom:7px;
}

.social-media {
    position: fixed;
    bottom:0;
    margin-bottom:40px;
    text-align: right;
    width: 100px;
}

.social-media-icons {
    width:16px; 
    height:16px; 
    margin-bottom:18px;
}

#page-content {
    margin:30px 0 60px 0;
    flex: 1;
    order: 2; 
}

.portfolio {
    display: flex;
    flex-wrap: wrap;
  }
  
.square {
    position: relative;
    flex-basis: calc(33.333% - 10px);
    margin: 5px;
    border: 1px solid #ccc;
    box-sizing: border-box;
  }

.span2 {
    position: relative;
    flex-basis: calc(66.666% - 10px);
    margin: 5px;
    border: 1px solid #ccc;
    box-sizing: border-box;
  }

.square::before {
    content: '';
    display: block;
    padding-top: 100%;
  }
  
.square .content {
    position: absolute;
    top: 0; left: 0;
    height: 100%;
    width: 100%;
  }

footer {
    order: 2;
    margin: 0 0 58px 30px;
    flex-shrink: 0;
    font-size: 12px;
}

.hidden {
    opacity: 0;
  }

@keyframes fade-in {
    from {opacity: 0;}
    to {opacity: 1;}
}
.fade-in-element {
  animation: fade-in 1.4s;
}

版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 dio@foxmail.com 举报，一经查实，本站将立刻删除。

相关推荐

导入项目后报错问题
依赖报错 idea导入项目后依赖报错，解决方案：https://blog.csdn.net/weixin_42420249/article/details/81191861 依赖版本报错：更换其他版本 无法下载依赖可参考：https://blog.csdn.net/weixin_42628809/a
idea不能识别yaml文件
使用mybatis plus常见错误
错误1：代码生成器依赖和mybatis依赖冲突 启动项目时报错如下 2021-12-03 13:33:33.927 ERROR 7228 [ main] o.s.b.d.LoggingFailureAnalysisReporter : *************************** APPL
gradle常见问题与错误
错误1：gradle项目控制台输出为乱码 # 解决方案：https://blog.csdn.net/weixin_43501566/article/details/112482302 # 在gradle-wrapper.properties 添加以下内容 org.gradle.jvmargs=-Df
Mybatis Plus传入参数0不起作用
错误还原：在查询的过程中，传入的workType为0时，该条件不起作用 &lt;select id=&quot;xxx&quot;&gt; SELECT di.id, di.name, di.work_type, di.updated... &lt;where&gt; &lt;if test=&qu
linux中make编译源码包失败
报错如下，gcc版本太低 ^ server.c:5346:31: 错误：‘struct redisServer’没有名为‘server_cpulist’的成员 redisSetCpuAffinity(server.server_cpulist); ^ server.c: 在函数‘hasActiveC
微服务启动错误：Command line is too long. Shorten command line for
解决方案1 1、改项目中.idea/workspace.xml配置文件，增加dynamic.classpath参数 2、搜索PropertiesComponent，添加如下 &lt;property name=&quot;dynamic.classpath&quot; value=&quot;tru
vue常见错误
删除根组件app.vue中的默认代码后报错：Module Error (from ./node_modules/eslint-loader/index.js): 解决方案：关闭ESlint代码检测，在项目根目录创建vue.config.js，在文件中添加 module.exports = { lin
spark常见错误
查看spark默认的python版本 [root@master day27]# pyspark /home/software/spark-2.3.4-bin-hadoop2.7/conf/spark-env.sh: line 2: /usr/local/hadoop/bin/hadoop: No s
matplotlib报错：AttributeError: module 'backend_interagg' has no attribute 'FigureCanvas'. Did you mean: 'FigureCanvasAgg'?
使用本地python环境可以成功执行 import pandas as pd import matplotlib.pyplot as plt # 设置字体 plt.rcParams[&#39;font.sans-serif&#39;] = [&#39;SimHei&#39;] # 能正确显示负号 p
gitlab登录失败，报错：This challenge page was accidentally cached by an intermediary and is no longer available.
设置时间 控制面板
后端开发常见错误
错误1：Request method ‘DELETE‘ not supported 错误还原：controller层有一个接口，访问该接口时报错：Request method ‘DELETE‘ not supported 错误原因：没有接收到前端传入的参数，修改为如下 参考 错误2：cannot r
docker常见错误
错误1：启动docker镜像时报错：Error response from daemon: driver failed programming external connectivity on endpoint quirky_allen 解决方法：重启docker -&gt; systemctl r
idea常见错误
错误1：private field ‘xxx‘ is never assigned 按Altʾnter快捷键，选择第2项 参考：https://blog.csdn.net/shi_hong_fei_hei/article/details/88814070 错误2：启动时报错，不能找到主启动类 #
pip安装依赖失败
报错如下，通过源不能下载，最后警告pip需升级版本 Requirement already satisfied: pip in c:\users\ychen\appdata\local\programs\python\python310\lib\site-packages (22.0.4) Coll
maven常见错误
错误1：maven打包报错 错误还原：使用maven打包项目时报错如下 [ERROR] Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:3.2.0:resources (default-resources)
cloud项目中常见错误
错误1：服务调用时报错 服务消费者模块assess通过openFeign调用服务提供者模块hires 如下为服务提供者模块hires的控制层接口 @RestController @RequestMapping(&quot;/hires&quot;) public class FeignControl
springboot常见错误
错误1：运行项目后报如下错误 解决方案 报错2：Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project sb 解决方案：在pom.
springmvc拦截器中使用redisTemplate报空指针异常
参考 错误原因 过滤器或拦截器在生效时，redisTemplate还没有注入 解决方案：在注入容器时就生效 @Component //项目运行时就注入Spring容器 public class RedisBean { @Resource private RedisTemplate&lt;String
vite报错：npm ERR! command C:WINDOWSsystem32cmd.exe /d /s /c C:UsersychenAppDataLocalTempnpx-dde1c848.cmd
使用vite构建项目报错 C:\Users\ychen\work&gt;npm init @vitejs/app @vitejs/create-app is deprecated, use npm init vite instead C:\Users\ychen\AppData\Local\npm-
pythonJavaScriptjavaHTMLPHPreactjsC#AndroidCSSNode.jssqlrpython-3.xMysqLjQueryc++pandasFlutterangularIOSdjangolinuxswifttypescript路由器JSON路由器设置无线路由器h3c华三华三路由器设置华三路由器电脑软件教程arraysdocker软件图文教程Cvue.jslaravelspring-boot