根据另一个Div保持高度[重复]

Question

这个问题在这里已有答案：

• How can you set the height of an outer div to always be equal to a particular inner div? 2回答

.col-6 h1 {
  color: white;
  text-align: center;
}
h1 {
  background-color: red;
}

.COL1, .COL2 {
  border: 1px solid red;
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<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>
<br></br>
<div class='container'>
  <div class='row'>
    <div class='col-6 COL1'>
      Lorem ipsum dolor sit amet consectetur adipiscing elit risus conubia ante, congue faucibus ac a non aptent nisi per commodo facilisi id, tempus lacus maecenas tincidunt mus sociosqu elementum ornare eget. Nascetur vestibulum hac tempor integer semper curae tempus etiam massa, platea fusce pellentesque aenean conubia at lectus non penatibus, nibh venenatis himenaeos scelerisque placerat imperdiet dignissim felis. Feugiat fames lectus magna aenean porttitor taciti hendrerit, integer facilisi nibh habitant dignissim sollicitudin aliquam, massa faucibus dictumst maecenas rhoncus sapien.
    </div>
    <div class='col-6 COL2'>
      <h1>ADVERTISE</h1>
      <div>Lorem ipsum dolor sit amet consectetur adipiscing elit risus conubia ante, congue faucibus ac a non aptent nisi per commodo facilisi id, tempus lacus maecenas tincidunt mus sociosqu elementum ornare eget. Nascetur vestibulum hac tempor integer semper curae tempus etiam massa, platea fusce pellentesque aenean conubia at lectus non penatibus, nibh venenatis himenaeos scelerisque placerat imperdiet dignissim felis. Feugiat fames lectus magna aenean porttitor taciti hendrerit, integer facilisi nibh habitant dignissim sollicitudin aliquam, massa faucibus dictumst maecenas rhoncus sapien.</div>
      <h1>ADVERTISE</h1>
    </div>
  </div>
</div>

现在这个HTML是这样的假

但我想要的是让Lorem ipsum文本溢出：滚动保持COL2的高度等于COL1像这样

如果Lorem Ipsum文本太短而不能溢出，那么它就会像这样自我克制

保持ADVERTISE在BOTTOM作为Lorem Ipsum可以达到的最大高度。

没有JS可以使用Bootstrap或CSS吗？

附： COL1不具有/不能具有固定高度。

Answer 1

将position:absolute添加到COL2的所有孩子身上，这样就不会对COL2的身高产生影响。

.col-6 h1 {
  color: white;
  text-align: center;
}

h1 {
  background-color: red;
  position: absolute;
  left: 0;
  right: 0;
  height: 50px;
  margin: 0 !important;
}

.COL1,
.COL2 {
  border: 1px solid red;
}

.COL2 .top-banner {
  top: 0;
}

.COL2 .bottom-banner {
  bottom: 0;
}

.COL2 div {
  position: absolute;
  top: 50px;
  left: 0;
  bottom: 50px;
  right: 0;
  overflow: auto;
}

<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='container'>
  <div class='row'>
    <div class='col-6 COL1'>
      Lorem ipsum dolor sit amet consectetur adipiscing elit risus conubia ante, congue faucibus ac a non aptent nisi per commodo facilisi id, tempus lacus maecenas tincidunt mus sociosqu elementum ornare eget. Nascetur vestibulum hac tempor integer semper
      curae tempus etiam massa, platea fusce pellentesque aenean conubia at lectus non penatibus, nibh venenatis himenaeos scelerisque placerat imperdiet dignissim felis. Feugiat fames lectus magna aenean porttitor taciti hendrerit, integer facilisi nibh
      habitant dignissim sollicitudin aliquam, massa faucibus dictumst maecenas rhoncus sapien.
    </div>
    <div class='col-6 COL2'>
      <h1 class="top-banner">ADVERTISE</h1>
      <div>Lorem ipsum dolor sit amet consectetur adipiscing elit risus conubia ante, congue faucibus ac a non aptent nisi per commodo facilisi id, tempus lacus maecenas tincidunt mus sociosqu elementum ornare eget. Nascetur vestibulum hac tempor integer semper
        curae tempus etiam massa, platea fusce pellentesque aenean conubia at lectus non penatibus, nibh venenatis himenaeos scelerisque placerat imperdiet dignissim felis. Feugiat fames lectus magna aenean porttitor taciti hendrerit, integer facilisi
        nibh habitant dignissim sollicitudin aliquam, massa faucibus dictumst maecenas rhoncus sapien.</div>
      <h1 class="bottom-banner">ADVERTISE</h1>
    </div>
  </div>
</div>

Answer 2

使用此代码

<!DOCTYPE html>
<html>
<head>
  <title></title>
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<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>
  <style type="">
    .col-6 h1 {
  color: white;
  text-align: center;
}
h1 {
  background-color: red;
}

.COL1, .COL2 {
  height: 250px;
  border: 1px solid red;
}

#overflow{
  height: 145px;
  overflow: scroll;
}
section{
  height: 250px;
}
</style>
</head>
<body>
  <section>
    <div class='container'>
    <div class='row'>
      <div class='col-6 COL1'>
        Lorem ipsum dolor sit amet consectetur adipiscing elit risus conubia ante, congue faucibus ac a non aptent nisi per commodo facilisi id, tempus lacus maecenas tincidunt mus sociosqu elementum ornare eget. Nascetur vestibulum hac tempor integer semper curae tempus etiam massa, platea fusce pellentesque aenean conubia at lectus non penatibus, nibh venenatis himenaeos scelerisque placerat imperdiet dignissim felis. Feugiat fames lectus magna aenean porttitor taciti hendrerit, integer facilisi nibh habitant dignissim sollicitudin aliquam, massa faucibus dictumst maecenas rhoncus sapien.
      </div>
      <div class='col-6 COL2'>
        <h1>ADVERTISE</h1>
        <div id = overflow>Lorem ipsum dolor sit amet consectetur adipiscing elit risus conubia ante, congue faucibus ac a non aptent nisi per commodo facilisi id, tempus lacus maecenas tincidunt mus sociosqu elementum ornare eget. Nascetur vestibulum hac tempor integer semper curae tempus etiam massa, platea fusce pellentesque aenean conubia at lectus non penatibus, nibh venenatis himenaeos scelerisque placerat imperdiet dignissim felis. Feugiat fames lectus magna aenean porttitor taciti hendrerit, integer facilisi nibh habitant dignissim sollicitudin aliquam, massa faucibus dictumst maecenas rhoncus sapien.</div>
        <h1>ADVERTISE</h1>
      </div>
    </div>
  </div>
  </section>


</body>
</html>

我想这会对你有帮助....