中心div垂直在两个div之间

Question

这就是我需要的

是否可以将标题置于两个可以具有不同大小的div之间？没有JS。

<div class="parent">
   <div class="subtitle">Subtitle</div>
   <h2>Title</h2>
   <div class="subtitle">Subtitle</div>
</div>

我检查了Stretch (vertically) middle div between the other two，但在我的情况下，我不知道max-height header，footer。

Answer 1

这就是flex的用途，假设您不必支持旧浏览器。请参阅can I use。

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.parent {
  position: relative;
  background: black;
  color: white;
  min-height: 100px;
  display:flex;
  flex-direction: column;
  align-content: space-between;
  padding: 0 40px;
  border: 1px solid white;
  width: calc(33% - 90px);
  float:left;
}
.parent:before {
  content: " ";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: red;
}
.parent h2 {
  position: absolute;
  top: 50%;
  margin: 0;
  transform: translateY(-50%);
}
.subtitle {
  padding: 40px 0;
}

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<div class="parent">
   <div class="subtitle">Subtitle</div>
   <h2>Title</h2>
   <div class="subtitle">Subtitle</div>
</div>

<div class="parent">
   <div class="subtitle">Subtitle<br/>Subtitle<br/>Subtitle</div>
   <h2>Title</h2>
   <div class="subtitle">Subtitle</div>
</div>

<div class="parent">
   <div class="subtitle">Subtitle</div>
   <h2>Title long<br/>2 lines</h2>
   <div class="subtitle">Subtitle</div>
</div>

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