如何在百分比的子元素中使用最小高度？(how to use min

如何在百分比的子元素中使用最小高度？(how to use min-height in child element with percentage?)

我想根据＃child_2的内容呈现HTML（ https://jsfiddle.net/xhtp70e6/ ）

<div id="parent"> <div id="child"> <div id="child_1"></div> <div id="child_2"> Content </div> </div> <div id="child2"></div> </div> html, body { height: 100%; } #parent { width: 50px; height: 1px; min-height: 100%; } #child { width: 50px; height: 1px; min-height: 80%; background-color: blue; } #child_1 { height: 50%; background-color: black; } #child_2 { min-height: 50%; background-color: pink; } #child2 { width: 50px; height: 20%; background-color: orange; }

当内容短小时，文档将完全呈现在页面上。（如上例）

但是当内容很长时，它不显示整个＃child_2的内容。（ https://jsfiddle.net/mrdkvvbn/）＃child2的内容在＃child_2的内容上不会下降。

<div id="parent"> <div id="child"> <div id="child_1"></div> <div id="child_2">Content<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> </div> </div> <div id="child2"></div> </div>

我该如何解决它？请帮帮我！

I wanted to render HTML according to #child_2's contents (https://jsfiddle.net/xhtp70e6/)

<div id="parent"> <div id="child"> <div id="child_1"></div> <div id="child_2"> Content </div> </div> <div id="child2"></div> </div> html, body { height: 100%; } #parent { width: 50px; height: 1px; min-height: 100%; } #child { width: 50px; height: 1px; min-height: 80%; background-color: blue; } #child_1 { height: 50%; background-color: black; } #child_2 { min-height: 50%; background-color: pink; } #child2 { width: 50px; height: 20%; background-color: orange; }

when the contents's short, a document is rendered fully to page well. (like above example)

but when the contents's long, it doesn't display whole #child_2's contents. (https://jsfiddle.net/mrdkvvbn/) The #child2's contents goes up on the #child_2's contents without going down it.

<div id="parent"> <div id="child"> <div id="child_1"></div> <div id="child_2">Content<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> </div> </div> <div id="child2"></div> </div>

How can I solve it? please help me !