JSFiddle - React, Tailwind, and code Playground

HTML

<div class="view-content">

    <div class="section section_2">content</div>
    <div class="section section_2">content</div>
    <div class="section section_1">content</div>
    <div class="section section_4">content</div>
    <div class="section section_4">content</div>
</div>

CSS

.column{
    background:red;
    margin-bottom: 30px;
}

JavaScript

var classes = {};
$(".view-content > div").each(function() {
    classes[$(this).attr("class")] = true;
});
for (singleClass in classes) {
    $("." + singleClass).wrapAll('<div class="column" />');
}