当flexbox容器指定了高度时,如何滚动嵌套的flexbox子项

问题描述 投票:0回答:1

我试图使嵌套的flexbox子div(child211)在没有可用空间时显示滚动。 Flexbox容器具有预定义的高度。 child211的Flexbox父child2有溢出:隐藏。我不想滚动整个child2。

顺便说一句:我只显示基本结构,因为在我的真实场景中,最后一个div的路径非常长。

示例CSS和HTML如下所示:

.container {
  display: flex;
  flex-direction: column;
  background-color: yellow;
  height: 380px;
}

.child {
  font-size: 100px;
  color: white;
}

.child1 {
  font-size: 50px;
  background: red;
}

.child2 {
  height: 100%;
  background-color: green;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.child21 {
  background-color: rgb(20, 255, 0);
}

.child211 {
  background-color: rgb(200, 255, 0);
  overflow: auto;
}

.child3 {
  font-size: 50px;
  background-color: blue;
}
<!DOCTYPE html>
<html lang="en">

<head>
  <link rel="stylesheet" href="style.css">
</head>

<body>
  <div class="container">
    <div class="child1 child">
      DIV1
    </div>
    <div class="child2 child">
      DIV2
      <div class="child21 child">
        DIV21
        <div class="child211 child">
          DIV211
        </div>
      </div>
    </div>
    <div class="child3 child">
      DIV3
    </div>
  </div>
</body>

</html>
css flexbox overflow
1个回答
0
投票

使child2成为具有列方向的flex容器,只需在嵌套的子元素上添加overflow:auto

.container {
  display: flex;
  flex-direction: column;
  background-color: yellow;
  height: 380px;
}

.child {
  font-size: 100px;
  color: white;
}

.child1 {
  font-size: 50px;
  background: red;
}

.child2 {
  height: 100%;
  background-color: green;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  display:flex;
  flex-direction:column;
}

.child21 {
  background-color: rgb(20, 255, 0);
  overflow:auto;
}

.child211 {
  background-color: rgb(200, 255, 0);
  overflow: auto;
}

.child3 {
  font-size: 50px;
  background-color: blue;
}
<!DOCTYPE html>
<html lang="en">

<head>
  <link rel="stylesheet" href="style.css">
</head>

<body>
  <div class="container">
    <div class="child1 child">
      DIV1
    </div>
    <div class="child2 child">
      DIV2
      <div class="child21 child">
        DIV21
        <div class="child211 child">
          DIV211
        </div>
      </div>
    </div>
    <div class="child3 child">
      DIV3
    </div>
  </div>
</body>

</html>

如果要在内部级别上滚动,可以保持嵌套Flex容器。

.container {
  display: flex;
  flex-direction: column;
  background-color: yellow;
  height: 380px;
}

.child {
  font-size: 100px;
  color: white;
}

.child1 {
  font-size: 50px;
  background: red;
}

.child2 {
  height: 100%;
  background-color: green;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  display:flex;
  flex-direction:column;
}

.child21 {
  background-color: rgb(20, 255, 0);
  overflow:auto;
  display:flex;
  flex-direction:column;
}

.child211 {
  background-color: rgb(200, 255, 0);
  overflow: auto;
}

.child3 {
  font-size: 50px;
  background-color: blue;
}
<!DOCTYPE html>
<html lang="en">

<head>
  <link rel="stylesheet" href="style.css">
</head>

<body>
  <div class="container">
    <div class="child1 child">
      DIV1
    </div>
    <div class="child2 child">
      DIV2
      <div class="child21 child">
        DIV21
        <div class="child211 child">
          DIV211
        </div>
      </div>
    </div>
    <div class="child3 child">
      DIV3
    </div>
  </div>
</body>

</html>
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