创建5个类为col-sm-2的元素，并在第一个元素中添加类为col-sm-offset-1

附注:这将不是全宽度的(它将从屏幕的左右略微缩进)

代码应该看起来像这样

<div class="col-sm-2 col-sm-offset-1"></div>
<div class="col-sm-2"></div>
<div class="col-sm-2"></div>
<div class="col-sm-2"></div>
<div class="col-sm-2"></div>

var cols = $(".container .item").length;
if (cols == 5){
    $('div.item').removeClass('col-md-2..etc').addClass('col-md-3').css('width', '20%');
 }

Jquery和完成!框架!

只需创建一个新类，并根据需要定义每个媒体查询的行为

@media(min-width: 768px){
  .col-1-5{
    width: 20%;
    float: left;
    position: relative;
    min-height: 1px;
    padding-right: 5px;
    padding-left: 5px;
  }
}

<div class="container-fluid">
  <div class="row">
    <div class="col-1-5">col 1</div>
    <div class="col-1-5">col 2</div>
    <div class="col-1-5">col 3</div>
    <div class="col-1-5">col 4</div>
    <div class="col-1-5">col 5</div>
  </div>
</div>

这里是一个工作演示https://codepen.io/giorgosk/pen/BRVorW

最简单的方法是在行中添加row-cols-5。点击这里阅读更多

<div class="container">
  <div class="row row-cols-5">
    <div class="col">Col 1</div>
    <div class="col">Col 2</div>
    <div class="col">Col 3</div>
    <div class="col">Col 4</div>
    <div class="col">Col 5</div>
  </div>
</div>

<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/css/bootstrap.min.css" rel="stylesheet"> <div class="container"> <div class="row row-cols-5"> <div class="col border bg-primary">Col 1</div> <div class="col border bg-primary">Col 2</div> <div class="col border bg-primary">Col 3</div> <div class="col border bg-primary">Col 4</div> <div class="col border bg-primary">Col 5</div> <div class="col border bg-primary">Col 6</div> <div class="col border bg-primary">Col 7</div> </div> </div>

.col-xs-2-4 { position: relative; float: left; width: 20%; min-height: 1px; padding-left: 15px; padding-right: 15px; } .col-sm-2-4 { position: relative; min-height: 1px; padding-left: 15px; padding-right: 15px; } @media (min-width: 768px) { .col-sm-2-4 { float: left; width: 20%; } } .col-md-2-4 { position: relative; min-height: 1px; padding-left: 15px; padding-right: 15px; } @media (min-width: 992px) { .col-md-2-4 { float: left; width: 20%; } } .col-lg-2-4 { position: relative; min-height: 1px; padding-left: 15px; padding-right: 15px; } @media (min-width: 1200px) { .col-lg-2-4 { float: left; width: 20%; } }

最好的方法

只在行中添加.row-cols-5类。每一行有5个div。

<div class="container-fluid">
    <div class="row row-cols-5">
        <div class="col">1</div>
        <div class="col">2</div>
        <div class="col">3</div>
        <div class="col">4</div>
        <div class="col">5</div>
        <div class="col">6</div>
        <div class="col">7</div>
        <div class="col">8</div>
        <div class="col">9</div>
        <div class="col">10</div>
    </div>
</div>

使用响应式.row-cols-*类快速设置最能呈现内容和布局的列数。普通的.col-*类应用于单个列(例如，.col-md-4)，而行列类在父.row上设置为快捷方式。

row-cols - * row-cols-sm - * row-cols-md - * row-cols-lg - * row-cols-xl - *

你也可以使用附带的Sass mixin, row-cols():

.element {
  // Three columns to start
  @include row-cols(3);

  // Five columns from medium breakpoint up
  @include media-breakpoint-up(md) {
    @include row-cols(5);
  }
}