<div class="equal row-fluid">
    <div class="span2"></div>
    <div class="span2"></div>
    <div class="span2"></div>
    <div class="span2"></div>
    <div class="span2"></div>
</div>

.equal .span2 {
    width: 20%;
}

引导4

我看了所有的答案，没有找到“显而易见的答案”。基本上，您需要做的是选取任何自举列(例如col-2)并编辑一些值。在这个例子中，我使用的是.col-custom类。

5个相等的列表示每个列占用20%，因此:flex:0 0 20%和max-width:20%。同样的方法，你可以创建其他数量的列(7,9,11,84或任何你想要的)。

您可以创建自定义宽度的CSS变量，并在项目中使用它。就像这样:

:root {
  --col-custom: 20%;
}

.col-custom {
  flex: 0 0 var(--col-custom);
  max-width: var(--col-custom);
}

工作的例子:

.col-custom, .col-sm-custom, .col-md-custom, .col-lg-custom, .col-xl-custom { position: relative; width: 100%; padding-right: 15px; padding-left: 15px; } .col-custom { flex: 0 0 20%; max-width: 20%; } @media (min-width: 576px){ .col-sm-custom { flex: 0 0 20%; max-width: 20%; } } @media (min-width: 768px){ .col-md-custom { flex: 0 0 20%; max-width: 20%; } } @media (min-width: 992px){ .col-lg-custom { flex: 0 0 20%; max-width: 20%; } } @media (min-width: 1200px){ .col-xl-custom { flex: 0 0 20%; max-width: 20%; } } /*DEMO*/ .col-custom,.col-sm-custom,.col-md-custom,.col-lg-custom,.col-xl-custom{height:100px;border:1px red solid} <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"> <div class="container-fluid"> <div class="row"> <div class="col-sm-custom"></div> <div class="col-sm-custom"></div> <div class="col-sm-custom"></div> <div class="col-sm-custom"></div> <div class="col-sm-custom"></div> </div> </div>

使用5个div，类为span2，并给第一个类为offset1。

<div class="row-fluid">
    <div class="span2 offset1"></div>
    <div class="span2"></div>
    <div class="span2"></div>
    <div class="span2"></div>
    <div class="span2"></div>
</div>

瞧! 五列等距居中。

在引导3.0中，这段代码看起来像

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

更新

因为bootstrap 4.0默认使用Flexbox:

<div class="row">
    <div class="col"></div>
    <div class="col"></div>
    <div class="col"></div>
    <div class="col"></div>
    <div class="col"></div>
</div>

我对Mafnah的答案进行了投票，但再看一遍，如果你保持默认的边际，我建议下面的答案更好。

<div class="equal row-fluid">
    <div class="span2"></div>
    <div class="span2"></div>
    <div class="span2"></div>
    <div class="span2"></div>
    <div class="span2"></div>
</div>

.equal .span2 {
    width: 17.9%;
}

这个很棒:http://www.ianmccullough.net/5-column-bootstrap-layout/

只做:

<div class="col-xs-2 col-xs-15">

和CSS:

.col-xs-15{
    width:20%;
}

引导4，每行可变列数

如果你想每行最多有5列，这样每一行的列数仍然只占一行的1/5，解决方案是使用Bootstrap 4的mixins:

SCSS:

.col-2-4 {
    @include make-col-ready(); // apply standard column margins, padding, etc.
    @include make-col(2.4); // 12/5 = 2.4
}
.col-sm-2-4 {
    @include make-col-ready();
    @include media-breakpoint-up(sm) {
        @include make-col(2.4);
    }
}
.col-md-2-4 {
    @include make-col-ready();
    @include media-breakpoint-up(md) {
        @include make-col(2.4);
    }
}
.col-lg-2-4 {
    @include make-col-ready();
    @include media-breakpoint-up(lg) {
        @include make-col(2.4);
    }
}
.col-xl-2-4 {
    @include make-col-ready();
    @include media-breakpoint-up(xl) {
        @include make-col(2.4);
    }
}

HTML:

<div class="container">    
  <div class="row">
    <div class="col-12 col-sm-2-4">1 of 5</div>
    <div class="col-12 col-sm-2-4">2 of 5</div>
    <div class="col-12 col-sm-2-4">3 of 5</div>
    <div class="col-12 col-sm-2-4">4 of 5</div>
    <div class="col-12 col-sm-2-4">5 of 5</div>
  </div>
  <div class="row">
    <div class="col-12 col-sm-2-4">1 of 2</div> <!-- same width as column "1 of 5" above -->
    <div class="col-12 col-sm-2-4">2 of 2</div> <!-- same width as column "2 of 5" above -->
  </div>
</div>