BootstrapRow太晚命中斷點-有解無憂

使用下面的當前代碼，該行在尺寸為 234 x 668 之前不會垂直更改

.contbg {
  background-color: #FF0000;
}

.rowbg {
  background-color: #FFFF00;
}

.colbg {
  background-color: #00ff00;
}

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
  <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
</head>


<a>TEST</a>
<div class="container-fluid">
  <div class="row">
    <div class="col colbg">
      <div class="container cont2">
        <div class="row-2 rowbg">
          TTITLE
        </div>
        <div class="row-10 rowbg">
          <img class="img-fluid rounded-3" src="https://source.unsplash.com/collection/190728/1500x900" alt="">
        </div>
      </div>
    </div>
    <div class="col colbg">
      <div class="container cont2">
        <div class="row-2 rowbg">
          TTITLE
        </div>
        <div class="row-10 rowbg">
          <img class="img-fluid rounded-3" src="https://source.unsplash.com/collection/190728/1500x900" alt="">
        </div>
      </div>
    </div>
    <div class="col colbg">
      <div class="container cont2">
        <div class="row-2 rowbg">
          TTITLE
        </div>
        <div class="row-10 rowbg">
          <img class="img-fluid rounded-3" src="https://source.unsplash.com/collection/190728/1500x900" alt="">
        </div>
      </div>
    </div>
  </div>
</div>

我試圖讓它在低于 450w 時重新排列，但是當我將 row-sm 添加到第一行時

    <a>TEST</a>
    <div class="container-fluid">
      <div class="row-sm">
        <div class="col colbg">

它使整個容器從一開始就垂直而不是水平。我怎樣才能解決這個問題？

uj5u.com熱心網友回復：

我錯過了添加到每一列的 col-sm-4

.contbg {
  background-color: #FF0000;
}

.rowbg {
  background-color: #FFFF00;
}

.colbg {
  background-color: #00ff00;
}

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
  <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
</head>


<a>TEST</a>
<div class="container-fluid">
  <div class="row">
    <div class="col-sm-4 colbg">
      <div class="container cont2">
        <div class="row-2 rowbg">
          TTITLE
        </div>
        <div class="row-10 rowbg">
          <img class="img-fluid rounded-3" src="https://source.unsplash.com/collection/190728/1500x900" alt="">
        </div>
      </div>
    </div>
    <div class="col-sm-4 colbg">
      <div class="container cont2">
        <div class="row-2 rowbg">
          TTITLE
        </div>
        <div class="row-10 rowbg">
          <img class="img-fluid rounded-3" src="https://source.unsplash.com/collection/190728/1500x900" alt="">
        </div>
      </div>
    </div>

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標籤：html css 推特引导

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