如何在不将其位置设置为绝对位置的情况下设置弹性框的高度？

Question

我需要将 height: 50px 的维度分配给

.panelDraggable__header 
.panelDraggable__info 
.panelDraggable__footer

使用以下代码我无法设置高度，如果您尝试检查 .panelDraggable__header 它的计算值为 18px。

唯一的办法是当我将位置调整为绝对位置时，这会破坏我的布局。

如何解决这个问题？
一般来说，向弹性框添加正确尺寸的最佳方法是什么？
我应该改用 flex-basis 吗？

#panelDevTools {
  position: fixed;
  top: 25px;
  left: 50px;
  width: 260px;
  height: 300px;
  background-color: yellow;
}
.panelDraggable {
  display: flex;
  -webkit-flex: auto;
  -ms-flex: auto;
  flex: auto;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
}
.panelDraggable__header {
  order: 0;
  background-color: greenyellow;
  height: 50px;
}
.panelDraggable__info {
  order: 1;
  background-color: lightseagreen;
  height: 50px;
}
.panelDraggable__content {
  order: 3;
  background-color: slategrey;
}
.panelDraggable__footer {
  order: 4;
  background-color: blueviolet;
  height: 50px;
}

<div data-ntv-type="PanelDevTools" class="panelDraggable" id="panelDevTools" widgetid="panelDevTools">
  <div id="panelDevTools__info" class="panelDraggable__info">Tools for developement</div>
  <div id="panelDevTools__content" class="panelDraggable__content">
    <div id="cnt-inner" style="height:800px;width:50px;background-color:red;"></div>
  </div>
  <div id="panelDevTools__footer" class="panelDraggable__footer ">Footer</div>
  <div id="panelDevTools__header" class="panelDraggable__header">
    <div id="panelDevTools__title" class="panelDraggable__title">Developer Tools</div>
    <div id="panelDevTools__handle" class="panelDraggable__handle"></div>
    <div id="panelDevTools__help" class="panelDraggable__help"></div>
  </div>
</div>

Answer 1

只需使用 min-height 而不是 height 因为你实际上高度是灵活的但至少 50px

#panelDevTools {
  position: fixed;
  top: 25px;
  left: 50px;
  width: 260px;
  height: 300px;
  background-color: yellow;
}
.panelDraggable {
  display: flex;
  -webkit-flex: auto;
  -ms-flex: auto;
  flex: auto;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
}
.panelDraggable__header {
  order: 0;
  background-color: greenyellow;
  min-height: 50px;
}
.panelDraggable__info {
  order: 1;
  background-color: lightseagreen;
  min-height: 50px;
}
.panelDraggable__content {
  order: 3;
  background-color: slategrey;
}
.panelDraggable__footer {
  order: 4;
  background-color: blueviolet;
  min-height: 50px;
}

<div data-ntv-type="PanelDevTools" class="panelDraggable" id="panelDevTools" widgetid="panelDevTools">
  <div id="panelDevTools__info" class="panelDraggable__info">Tools for developement</div>
  <div id="panelDevTools__content" class="panelDraggable__content">
    <div id="cnt-inner" style="height:800px;width:50px;background-color:red;"></div>
  </div>
  <div id="panelDevTools__footer" class="panelDraggable__footer ">Footer</div>
  <div id="panelDevTools__header" class="panelDraggable__header">
    <div id="panelDevTools__title" class="panelDraggable__title">Developer Tools</div>
    <div id="panelDevTools__handle" class="panelDraggable__handle"></div>
    <div id="panelDevTools__help" class="panelDraggable__help"></div>
  </div>
</div>

如何在不将其位置设置为绝对位置的情况下设置弹性框的高度？

How to set the height of a flex box without setting its position to absolute?

html

css

flexbox