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Bootstrap 4.0网格系统布局无法正常工作

layoutgridrowbootstrap-4col
9
我正在尝试使用Bootstrap进行布局，但是我不知道我做错了什么。我将两列设置为6，而第二列6中我放置了2列3，但它不起作用。我是Bootstrap的新手。
以下是代码： 

<!DOCTYPE html>
<html>
<head>
 <title></title>
 <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">
 <script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
 <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>
 <style type="text/css">
 </style>
</head>
<body>
<div class="container-fluid">
 <div class="container">
  <div class="row">
   <div class="col-1 col-sm-1 col-md-1 col-xl-1" style="border-left: solid 1px #ffbfbf;">a</div>
   <div class="col-1 col-sm-1 col-md-1 col-xl-1" style="border-left: solid 1px #ffbfbf;">a</div>
   <div class="col-1 col-sm-1 col-md-1 col-xl-1" style="border-left: solid 1px #ffbfbf;">a</div>
   <div class="col-1 col-sm-1 col-md-1 col-xl-1" style="border-left: solid 1px #ffbfbf;">a</div>
   <div class="col-1 col-sm-1 col-md-1 col-xl-1" style="border-left: solid 1px #ffbfbf;">a</div>
   <div class="col-1 col-sm-1 col-md-1 col-xl-1" style="border-left: solid 1px #ffbfbf;">a</div>
   <div class="col-1 col-sm-1 col-md-1 col-xl-1" style="border-left: solid 1px #ffbfbf;">a</div>
   <div class="col-1 col-sm-1 col-md-1 col-xl-1" style="border-left: solid 1px #ffbfbf;">a</div>
   <div class="col-1 col-sm-1 col-md-1 col-xl-1" style="border-left: solid 1px #ffbfbf;">a</div>
   <div class="col-1 col-sm-1 col-md-1 col-xl-1" style="border-left: solid 1px #ffbfbf;">a</div>
   <div class="col-1 col-sm-1 col-md-1 col-xl-1" style="border-left: solid 1px #ffbfbf;">a</div>
   <div class="col-1 col-sm-1 col-md-1 col-xl-1" style="border-right: solid 1px #ffbfbf;border-left: solid 1px #ffbfbf;">a</div>
  </div>
 </div>
 <div class="container">
  <div class="row">
   <div class="col-12 col-sm-12 col-md-6 col-xl-6" style="border-left: solid 1px #ffbfbf;"><div style="height: 700px; background-color: #FF3355; border-radius: 15px;">a a a a a a</div></div>
   <div class="col-12 col-sm-12 col-md-6 col-xl-6" style="border-left: solid 1px #ffbfbf;">
    <div class="col-12 col-sm-12 col-md-6 col-xl-6" style="padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;"><div style="height: 320px; background-color: #FF3355; border-radius: 15px;">a</div></div>
    <div class="col-12 col-sm-12 col-md-6 col-xl-6" style="padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;"><div style="height: 320px; background-color: #FF3355; border-radius: 15px;">a</div></div>

    <div class="col-12 col-sm-12 col-md-6 col-xl-6" style="padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;"><div style="height: 320px; background-color: #FF3355; border-radius: 15px;">a</div></div>
    <div class="col-12 col-sm-12 col-md-6 col-xl-6" style="padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;"><div style="height: 320px; background-color: #FF3355; border-radius: 15px;">a</div></div>
   </div>

  </div>
 </div>
</div>
335
</body>
</html>

我想做什么：

enter image description here

我得到的内容：

enter image description here

1个回答
16

您只是缺少一个基本的Bootstrap“规则”。来自文档..

在网格布局中，内容必须放置在列中，只有列可以是行的直接子元素。

在Bootstrap 4中，未放置在.row中的.col-会垂直堆叠。

https://www.codeply.com/go/GlA3IP7oGU

<div class="row">
    <div class="col-12 col-sm-12 col-md-6 col-xl-6" style="border-left: solid 1px #ffbfbf;">
        <div style="height: 700px; background-color: #FF3355; border-radius: 15px;">a a a a a a</div>
    </div>
    <div class="col-12 col-sm-12 col-md-6 col-xl-6" style="border-left: solid 1px #ffbfbf;">
        <div class="row">
            <div class="col-12 col-sm-12 col-md-6 col-xl-6" style="padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;">
                <div style="height: 320px; background-color: #FF3355; border-radius: 15px;">a</div>
            </div>
            <div class="col-12 col-sm-12 col-md-6 col-xl-6" style="padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;">
                <div style="height: 320px; background-color: #FF3355; border-radius: 15px;">a</div>
            </div>

            <div class="col-12 col-sm-12 col-md-6 col-xl-6" style="padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;">
                <div style="height: 320px; background-color: #FF3355; border-radius: 15px;">a</div>
            </div>
            <div class="col-12 col-sm-12 col-md-6 col-xl-6" style="padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;">
                <div style="height: 320px; background-color: #FF3355; border-radius: 15px;">a</div>
            </div>
        </div>
    </div>
</div>

了解Bootstrap嵌套的工作原理

相关: 在额外的div中包装Bootstrap列

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