固定宽度的孩子在flexbox中缩小

Question

我是display:flex第一次使用.

你可以在这里找到一个codepen:https://codepen.io/chrispillen/pen/GEYpRg

.node:not(.branch) {
  width: auto;
  height: 100px;
  background: red;
  margin-bottom: 1px;
}

.node.branch,
.node.branch .body {
  width: auto;
  overflow: hidden;
}

.node.branch .leaf {
  width: 100%;
  height: 100px;
  background: blue;
}

.node.branch .body {
  width: 100%;
  display: flex;
  align-items: stretch;
}

.node.branch .body .tribe {
  width: 100px;
  background: blue;
  margin-right: 1px;
}

.node.branch .body .subnodes {
  padding-top: 1px;
  width: 100%;
  overflow: hidden;
}

<div class="node"></div>
<div class="node branch">
  <div class="leaf"></div>
  <div class="body">
    <div class="tribe">TRIBE</div>
    <div class="subnodes">
      <div class="node"></div>
      <div class="node"></div>
    </div>
  </div>
  <div class="leaf"></div>
</div>

"部落"元素的宽度不是100px.

其他一切都按照假设运作.我能以某种方式强迫它吗？并顺便说一句:是这种行为的真正原因吗？

Answer 1

Flexbox项目的flex-shrink参数默认为1.这意味着如果您的Flexbox容器没有足够的空间,其项目将缩小.

要为flexbox项集设置禁用此行为flex-shrink: 0.

演示:

.node:not(.branch) {
  width: auto;
  height: 100px;
  background: red;
  margin-bottom: 1px;
}

.node.branch,
.node.branch .body {
  width: auto;
  overflow: hidden;
}

.node.branch .leaf {
  width: 100%;
  height: 100px;
  background: blue;
}

.node.branch .body {
  width: 100%;
  display: flex;
  align-items: stretch;
}

.node.branch .body .tribe {
  width: 100px;
  flex-shrink: 0; /* new */
  background: blue;
  margin-right: 1px;
}

.node.branch .body .subnodes {
  padding-top: 1px;
  width: 100%;
  overflow: hidden;
}

<div class="node"></div>

<div class="node branch">
  <div class="leaf"></div>

  <div class="body">
    <div class="tribe">TRIBE</div>

    <div class="subnodes">
      <div class="node"></div>
      <div class="node"></div>
    </div>
  </div>
  
  <div class="leaf"></div>
</div>