下面的代码提供了设置滚动div的最小高度的能力，并通过使用flex使其具有其父div的100%高度。

CSS:

.main {
  display: flex;
  flex-direction: column;
}

.scroll {
  overflow: auto;
  flex: 1 0 50px;
}

HTML:

<div class="main">
  <div class="scroll">
    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
  </div>
</div>

试着让最低利润率达到100%。

margin-bottom: 100%;

我可能有点晚了，但我找到了一个周围的工作，可能是一个hack。 首先给父层一个弯曲和100vh的高度

就像这样:

.parent {
   display: flex;
   justify-content: center;
   align-items: center;
   height: 100vh;/* Can be less depends on the container, basically this forces the element to expand */
}

这个答案是不理想的，因为CSS flexbox和网格实现到CSS。然而，这仍然是一个可行的解决方案

在一个较小的屏幕上，你可能希望保持高度自动，因为col1, col2和col3是相互堆叠的。

然而，在媒体查询断点之后，您希望所有列的cols都以相同的高度紧挨着出现。

1125 px只是窗口宽度断点的一个例子，在此之后，您将希望将所有列设置为相同的高度。

<div class="wraper">
    <div class="col1">Lorem ipsum dolor sit amet.</div>
    <div class="col2">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Eos laudantium, possimus sed, debitis amet in, explicabo dolor similique eligendi officia numquam eaque quae illo magnam distinctio odio, esse vero aspernatur.</div>
    <div class="col3">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Dolorem, odio qui praesentium.</div>
</div>

当然，如果需要，还可以设置更多的断点。

<script>
    $(document).ready(function(){
        $(window).on('load resize', function() {
            let vraperH = $('.wraper').height();
            if (window.innerWidth>= 1125) {
              $('.col1').height(vraperH);
              $('.col2').height(vraperH);
              $('.col3').height(vraperH);
            }
            if (window.innerWidth < 1125) {
              $('.col1').height('auto');
              $('.col2').height('auto');
              $('.col3').height('auto');
            }
        });
    });
</script>

要做到这一点，最简单的方法就是假装。《A List Apart》多年来对此进行了广泛的报道，比如Dan Cederholm 2004年的一篇文章。

我通常是这样做的:

<div id="container" class="clearfix" style="margin:0 auto;width:950px;background:white url(SOME_REPEATING_PATTERN.png) scroll repeat-y center top;">
    <div id="navigation" style="float:left;width:190px;padding-right:10px;">
        <!-- Navigation -->
    </div>
    <div id="content" style="float:left;width:750px;">
        <!-- Content -->
    </div>
</div>

您可以通过将#container包装在另一个div中，将标题div嵌入为#container的兄弟，并将边缘和宽度样式移动到父容器中，轻松地在此设计中添加标题。此外，CSS应该移动到一个单独的文件，而不是保持内联等等。最后，clearfix类可以在positioniseverything上找到。

经过长时间的寻找和尝试，没有什么能解决我的问题

style = "height:100%;"

关于儿童div

对于父母应用这个

.parent {
    display: flex;
    flex-direction: column;
}

此外，我使用bootstrap，这并没有腐败的响应为我。