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The new flexbox layout mode is poised to redefine how we do layouts in CSS. Unfortunately the specification has changed a lot recently, so it's implemented differently in different browsers. Still, I'd like to share a couple examples so you know what's coming up. These examples currently only work some browsers that use the latest version of the standard.

There are a lot of out-of-date flexbox resources around. If you want to learn more about flexbox, start here to learn how to identify if a resource is current or not. I have written a detailed article using the latest syntax.

There is a lot more you can do with flexbox; these are just a few examples to give you an idea:

Simple Layout using Flexbox

.container {
  display: -webkit-flex;
  display: flex;
}
nav {
  width: 200px;
}
.flex-column {
  -webkit-flex: 1;
          flex: 1;
}
<div class="container">
<div class="flex-column">
<section>

Flexbox is so easy!

</section>
<section>

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</section>
</div>

Fancy Layout using Flexbox

.container {
  display: -webkit-flex;
  display: flex;
}
.initial {
  -webkit-flex: initial;
          flex: initial;
  width: 200px;
  min-width: 100px;
}
.none {
  -webkit-flex: none;
          flex: none;
  width: 200px;
}
.flex1 {
  -webkit-flex: 1;
          flex: 1;
}
.flex2 {
  -webkit-flex: 2;
          flex: 2;
}
<div class="initial">

I will be 200px when there is room, and I will shrink down to 100px if there is not room, but no smaller.

</div>
<div class="none">

I will always be 200px, no matter what.

</div>
<div class="flex1">

I will fill up 1/3 of the remaining width.

</div>
<div class="flex2">

I will fill up 2/3 of the remaining width.

</div>

Centering using Flexbox

.vertical-container {
  height: 300px;
  display: -webkit-flex;
  display:         flex;
  -webkit-align-items: center;
          align-items: center;
  -webkit-justify-content: center;
          justify-content: center;
}
<div class="vertical-container">
<div>

Finally, it's easy to vertically center something in CSS!

</div>
</div>