HDFS Federation：使用与活动节点和备用节点相同的节点配置HA(HDFS Federation: Configuring HA using same node as an active node and standby node)

 这是可能的，但需要在父级上确定固定高度和在子级上定义宽度......并且在各种浏览器中以各种方式仍然存在错误。 
 
 Codepen演示 
 
 
 
 
 
  
.layout-5-3 {
  display: flex;
  background: lightblue;
  height: 250px;
  flex-direction: column;
  justify-content: center;
  flex-wrap: wrap
}
.layout-5-3 > div {
  border: 1px solid black;
}
.layout-5-3 > div:nth-child(1) {
  width: 48%;
  flex: 0 0 100%;
  background: lightgreen;
}
.layout-5-3 > div:nth-child(2),
.layout-5-3 > div:nth-child(3),
.layout-5-3 > div:nth-child(4),
.layout-5-3 > div:nth-child(5) {
  width: 48%;
  flex: 1;
  background: pink;
}
 
  
<div class="layout-5-3">
  <div class="box">Box1</div>
  <div class="box">Box2</div>
  <div class="box">Box3</div>
  <div class="box">Box4</div>
  <div class="box">Box5</div>
</div>
 
 
 
 

This is possible but would require fixed heights on the parent and defined widths on the children...and it would still be buggy in various browsers in various ways.
 
Codepen Demo
 
 
 
 
 
  
.layout-5-3 {
  display: flex;
  background: lightblue;
  height: 250px;
  flex-direction: column;
  justify-content: center;
  flex-wrap: wrap
}
.layout-5-3 > div {
  border: 1px solid black;
}
.layout-5-3 > div:nth-child(1) {
  width: 48%;
  flex: 0 0 100%;
  background: lightgreen;
}
.layout-5-3 > div:nth-child(2),
.layout-5-3 > div:nth-child(3),
.layout-5-3 > div:nth-child(4),
.layout-5-3 > div:nth-child(5) {
  width: 48%;
  flex: 1;
  background: pink;
}
 
  
<div class="layout-5-3">
  <div class="box">Box1</div>
  <div class="box">Box2</div>
  <div class="box">Box3</div>
  <div class="box">Box4</div>
  <div class="box">Box5</div>
</div>