使引导网格居中而不影响容器中项目的对称性

Question

我有4张2 x 2的图形，它们的布局很好，但是被推到屏幕的左侧。当我尝试添加一列（也许这是我要出问题的地方）时，一切都变得混乱了。我想在两行的左侧增加一列宽度2，然后是一个包含4个图表的2 x 2网格。

 <div class="container-fluid">

     </div>
      <div class="row">
        <div class="col-sm-4">
          <img src="fig1.png" alt="Bootcamp" width="450" height="350">
        </div>
        <div class="col-sm-4">
          <img src="fig2.png" alt="Bootcamp" width="450" height="350">
        </div>
      </div>
    </div> 
    <div>
      <div class="container-fluid">
        <div class="row">
          <div class="col-sm-4">
            <img src="fig3.png" alt="Bootcamp" width="450" height="350">
          </div>
          <div class="col-sm-4">
            <img src="fig4.png" alt="Bootcamp" width="450" height="350">
          </div>
        </div>
      </div> 

Answer 1

我已根据您的要求修改了代码。另外，为了使您的内容中心，我将justify-content-center类添加到row分区。

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous">

<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js" integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI" crossorigin="anonymous"></script>


<div class="container-fluid">

  <div class="row justify-content-center">
    <div class="col-sm-2"> TEXT 1 </div>
    <div class="col-sm-4">
      <img src="fig1.png" alt="Bootcamp" width="450" height="350">
    </div>
    <div class="col-sm-4">
      <img src="fig2.png" alt="Bootcamp" width="450" height="350">
    </div>
  </div>
  <div class="row justify-content-center">
    <div class="col-sm-2"> TEXT 2 </div>
    <div class="col-sm-4">
      <img src="fig3.png" alt="Bootcamp" width="450" height="350">
    </div>
    <div class="col-sm-4">
      <img src="fig4.png" alt="Bootcamp" width="450" height="350">
    </div>
  </div>
</div>

Answer 2

如果我理解正确，那么这两个都应该起作用：

选项1：

<div class="container-fluid">
    <div class="row">
        <div class="col-sm-2 bg-dark text-light">
            <div>
                <p>Text 1</p>
            </div>
            <div>
                <p>Text 2</p>
            </div>
        </div>
        <div class="col-sm-10">
            <!-- Add another row inside the remaining space, then add the 2 columns for graphs -->
            <div class="row">
                <div class="col-sm-6">
                    <img src="img1.png" class="img-fluid" alt="Bootcamp">
                </div>
                <div class="col-sm-6">
                    <img src="img2.png" class="img-fluid" alt="Bootcamp">
                </div>
                <div class="col-sm-6">
                    <img src="img3.png" class="img-fluid" alt="Bootcamp">
                </div>
                <div class="col-sm-6">
                    <img src="img4.png" class="img-fluid" alt="Bootcamp">
                </div>
            </div>
        </div>
    </div>
</div>

会生产什么

选项2：

<div class="container-fluid">
    <div class="row">
        <div class="col-sm-2 bg-dark text-light">
            <div>
                <p>Text 1</p>
            </div>
        </div>
        <div class="col-sm-10">
            <div class="row">
                <div class="col-sm-6">
                    <img src="img1.png" class="img-fluid" alt="Bootcamp">
                </div>
                <div class="col-sm-6">
                    <img src="img2.png" class="img-fluid" alt="Bootcamp">
                </div>
            </div>
        </div>
        <!-- Add second row -->
        <div class="col-sm-2 bg-dark text-light">
            <div>
                <p>Text 2</p>
            </div>
        </div>
        <div class="col-sm-10">
            <div class="row">
                <div class="col-sm-6">
                    <img src="img3.png" class="img-fluid" alt="Bootcamp">
                </div>
                <div class="col-sm-6">
                    <img src="img4.png" class="img-fluid" alt="Bootcamp">
                </div>
            </div>
        </div>
    </div>
</div>

会生产什么

希望有帮助！