Two columns flex-box layout

问题

I need create layout which will contain list of items in two columns. Like i showed below:

.container {
  border: 1px solid red;
  height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  flex-wrap: wrap;
}

.item {
  border: 1px dashed blue;
  height: 50px;
}

<div class="container">
  <div class="item">1</div>
  <div class="item">2</div>
  <div class="item">3</div>
  <div class="item">4</div>
  <div class="item">5</div>
  <div class="item">6</div>
  <div class="item">7</div>
  <div class="item">8</div>
</div>

But there is a problem with such layout. If there will be only 1 item - it will take full width. And i need to keep columns even if there are a few items.

回答1:

You can set a max-width for the item, equal to 50%. This will keep it, almost, the same width no matter what. I say almost because you also have borders set.

In order to keep the width exactly the same, you also have to set box-sizing: border-box for item.

So, your code will be:

.item {
  border: 1px dashed blue;
  height: 50px;
  box-sizing: border-box;
  max-width: 50%;
}

.container {
  border: 1px solid red;
  height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  flex-wrap: wrap;
}

.item {
  border: 1px dashed blue;
  height: 50px;
  box-sizing: border-box;
  max-width: 50%;
}

<div class="container">
  <div class="item">1</div>
  <div class="item">2</div>
  <div class="item">3</div>
  <div class="item">4</div>
  <div class="item">5</div>
  <div class="item">6</div>
  <div class="item">7</div>
  <div class="item">8</div>
</div>

回答2:

Try something like this:

.row {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  width: 100%;
}

.column {
  display: flex;
  flex-direction: column;
  flex-basis: 100%;
  flex: 1;
}

.blue-column {
  background-color: blue;
  height: 100px;
}

.green-column {
    height: 100px;
    background-color: green;
}

<div class='some-page-wrapper'>
  <div class='row'>
    <div class='column'>
      <div class='blue-column'>
        Some Text in Column One
      </div>
    </div>
    <div class='column'>
      <div class='green-column'>
        Some Text in Column Two
      </div>
    </div>
  </div>
</div>

来源：https://stackoverflow.com/questions/44242141/two-columns-flex-box-layout

标签

html

css

flexbox