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为什么这些弹性物品没有包装?

word-wrap flexbox css html

Jay · 技术社区 · 7 年前

我有一个flex项目,也是一个flex容器 .sub-con .分包商 即使在添加以下内容后仍拒绝包装: flex-flow: row wrap .

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-flow: row wrap;
  height: 100vh;
}

.sub-con {
  margin-right: 50px;
  margin-left: 50px;
  height: 500px;
  background-color: #fff;
  display: flex;
  justify-content: center;
  flex-flow: row wrap;
}

.col-one {
  height: 100px;
  border: 1px solid lightgreen;
  flex-grow: 2;
}

.col-two {
  height: 100px;
  border: 1px solid red;
  flex-grow: 1;
}

<div class="container">
  <div class="sub-con">
    <div class="col-one"></div>
    <div class="col-two"></div>
  </div>
</div>

1 回复 | 直到 6 年前

Michael Benjamin 6 年前

嵌套容器中的flex项大小为

.col-one{
  width: 40%;
  height: 100px;
  border: 1px solid lightgreen;
}
.col-two{
  width: 40%;
  height: 100px;
  border: 1px solid red;
}

因为百分比长度是基于父对象的长度 没有理由包装 . 它们始终是父对象的40%,即使父对象的宽度为1%。

px 或 em ,它们将包装。

jsFiddle demo

 .container {
   display: flex;
   justify-content: center;
   align-items: center;
   flex-flow: row wrap;
   height: 100vh;
 }
 
 .sub-con {
   flex: 1;  /* for demo only */
   align-content: flex-start; /* for demo only */
   margin-right: 50px;
   margin-left: 50px;
   height: 500px;
   background-color: #fff;
   display: flex;
   justify-content: center;
   flex-flow: row wrap;
 }
 
 .col-one {
   width: 200px;
   height: 100px;
   border: 1px solid lightgreen;
 }
 
 .col-two {
   width: 200px;
   height: 100px;
   border: 1px solid red;
 }

<div class="container">
  <div class="sub-con">
    <div class="col-one"></div>
    <div class="col-two"></div>
  </div>
</div>