JSFiddle - React, Tailwind, and code Playground

by Lucas Krause

HTML

<span>1</span><div></div>
<span>2</span><div></div>
<b>3</b><div></div>

<span>4</span><div></div>
<i>5</i><div></div>
<em>6</em><div></div>

<strong>7</strong><div></div>
<span>8</span><div></div>
<code>9</code><div></div>

<span>10</span><div></div>
<span>11</span><div></div>
<span>12</span><div></div>

<span>13</span><div></div>
<span>14</span><div></div>

CSS

:nth-child(3n+3) {
    color:red;
}
div:nth-of-type(3n){
    height:1px;
    background-color:red;
}