如何使用 d-flex 在项目之间留出空间

Question

我仍然不知道应该在哪里按网格系统和列分隔项目以及何时使用 d-flex？假设我有 4 个按钮：

<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<div class="d-flex justify-content-center">
  <button class="btn">First</button>
  <button class="btn">second</button>
  <button class="btn">Third</button>
  <button class="btn">fourth</button>
  <button class="btn">Fifth</button>
  <button class="btn">six</button>
</div>

我的行和中心都有项目，但没有填充它们之间的空间，我怎样才能实现它？我应该使用 col 和 row 还是 flex ？

Answer 1

在 Bootstrap 5 中，有一个使用间隙的选项。使用间隙，您可以在弹性项目之间提供空间。我也遇到了同样的问题，我不想使用边距或填充。所以gap对我来说是最好的解决方案。

.d-flex{
  gap:20px;
}

<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"/>
<div class="d-flex justify-content-center">
  <button class="btn">First</button>
  <button class="btn">second</button>
  <button class="btn">Third</button>
  <button class="btn">fourth</button>
  <button class="btn">Fifth</button>
  <button class="btn">six</button>
</div>

Answer 2

也许您需要迁移到 Bootstrap 5 并使用间隙实用程序。

<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"/>

<div class="d-flex justify-content-center gap-3">
  <button class="btn btn-outline-secondary">First</button>
  <button class="btn btn-outline-secondary">second</button>
  <button class="btn btn-outline-secondary">Third</button>
  <button class="btn btn-outline-secondary">fourth</button>
  <button class="btn btn-outline-secondary">Fifth</button>
  <button class="btn btn-outline-secondary">six</button>
</div>

看一下：https ://getbootstrap.com/docs/5.3/utilities/spacing/#gap

另： https: //getbootstrap.com/docs/5.0/migration/

Answer 3

.d-flex {
width: 100%;
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">

<div class="d-flex justify-content-between" >
<button class="btn">First</button>
<button class="btn">second</button>
<button class="btn">Third</button>
<button class="btn">fourth</button>
<button class="btn">Fifth</button>
 <button class="btn">six</button>
</div>

<br>
OR
<br>


<div class="d-flex justify-content-around" >
<button class="btn">First</button>
<button class="btn">second</button>
<button class="btn">Third</button>
<button class="btn">fourth</button>
<button class="btn">Fifth</button>
 <button class="btn">six</button>
</div>

<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>

如果您使用引导程序，则需要添加类。