JSFiddle - React, Tailwind, and code Playground

HTML

<div class="viewcontainer">
<div class="view-content">
    <div class="filterbox">FILTER</div>
    <div class="flex-item">
    Flex-ITEM
    </div>
    <div class="flex-item">
    Flex-ITEM
    </div>
    <div class="flex-item">
    Flex-ITEM
    </div>
</div>
</div>

CSS

.viewcontainer .view-content:not(:first-cild) {
  display:flex;
  flex-flow: wrap;
  justify-content: space-between;
  }