JSFiddle - React, Tailwind, and code Playground
by evan
HTML
<div id="c"></div>
CSS
#c {
width: 200px;
}
.b {
display: block;
float: left;
width: 19px;
height: 19px;
background: red;
margin: 1px 0 0 1px;
}
JavaScript
var $j = $;
var c = $j('#c');
for (var i = 0; i < 70; i++) {
c.append($j('<div class="b b' + i + '"></div>'));
}