Question

我想用margin向col添加一些mr-md-3，但这会导致中断 div

.content {
  height: 200px;
  border: 1px solid black;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>

<div class="container">
  <div class="row no-gutters">
    <div class="col-md-4 col-12 content mr-md-3 mb-3"></div>
    <div class="col-md-8 col-12 content mb-3"></div>
  </div>
</div>

<footer>
<div class="container">
  <div class="row no-gutters">
    <div class="col-md-4 col-12 content mb-3"></div>
    <div class="col-md-8 col-12 content mb-3"></div>
  </div>
</div>
</footer>

我需要不间断地在元素上添加一些边距权，并且要适合全局container，我该怎么做？

注意：请参见高分辨率示例。

Answer 1

您要做的就是将flex: 1;送给相邻的div。

现在，您可以使margin更大，并且problem列将相应缩小。

.container .problem{flex: 1;}

.content {
  height: 200px;
  border: 1px solid black;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>

<div class="container">
  <div class="row no-gutters">
    <div class="col-md-4 col-12 content mr-md-3 mb-3"></div>
    <div class="col-md-8 col-12 content problem mb-3"></div>
  </div>
</div>

<footer>
<div class="container">
  <div class="row no-gutters">
    <div class="col-md-4 col-12 content mb-3"></div>
    <div class="col-md-8 col-12 content mb-3"></div>
  </div>
</div>
</footer>

Answer 2

由于Bootstrap列装订线使用填充，请将内容放入列中并调整填充。

step

https://www.codeply.com/go/3wsSnnzCsp

Bootstrap 4为col增加余量

2 个答案: