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javascript - 如何管理引导 4 网格？

问题描述

实际上我有两个像col-md-6& & 我在左侧和右侧col-md-6有六个我只需要一个像下面给出的代码。imagesimages

这工作正常，但是当右侧图像不可用时，我需要将左六列扩展为全宽。我该怎么办？

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>


<div class="container">
    <div class="row">
    <div class="col-6">
    <div class="row">
      <div class="col-4" style="background-color:yellow;">img</div>
      <div class="col-4" style="background-color:orange;">img</div>
      <div class="col-4" style="background-color:blue;">img</div>
      <div class="col-4" style="background-color:red;">img</div>
      <div class="col-4" style="background-color:lime;">img</div>
      <div class="col-4" style="background-color:indianred;">img</div>
    </div>
      </div>
          <div class="col-6 p-0">
      <div class="col-12" style="background-color:green; height:48px;">img</div>
</div>
    </div>

</div>

col-md-6如果权利不可用，我想要如下代码所示：-

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>


<div class="container">
    <div class="row">
    <div class="col-12">
    <div class="row">
      <div class="col-2" style="background-color:yellow;">img</div>
      <div class="col-2" style="background-color:orange;">img</div>
      <div class="col-2" style="background-color:blue;">img</div>
      <div class="col-2" style="background-color:red;">img</div>
      <div class="col-2" style="background-color:lime;">img</div>
      <div class="col-2" style="background-color:indianred;">img</div>
    </div>
      </div>
    </div>

</div>

答案将不胜感激！

标签： javascripthtmlcssbootstrap-4

解决方案

替换col-6为col

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>


<div class="container">
    <div class="row">
    <div class="col">
    <div class="row">
      <div class="col-4" style="background-color:yellow;">img</div>
      <div class="col-4" style="background-color:orange;">img</div>
      <div class="col-4" style="background-color:blue;">img</div>
      <div class="col-4" style="background-color:red;">img</div>
      <div class="col-4" style="background-color:lime;">img</div>
      <div class="col-4" style="background-color:indianred;">img</div>
    </div>
      </div>
          <div class="col p-0">
      <div class="col-12" style="background-color:green; height:48px;">img</div>
</div>
    </div>

</div>

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