JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrapper">
    <div class="container">Container #1</div>
    <div class="container">Container #2</div>
    <div class="container">Container #3</div>
    <div class="container">Container #4</div>
    <div class="container">Container #5</div>
    <div class="container">Container #6</div>
    <div class="container">Container #7</div>
    <div class="container">Container #8</div>
    <div class="container">Container #9</div>
    <div class="container">Container #10</div>
    <div class="container">Container #11</div>
    <div class="container">Container #12</div>
    <div class="container">Container #13</div>
    <div class="container">Container #14</div>
    <div class="container">Container #15</div>
</div>

CSS

.wrapper div:nth-child(n+11) {
   background-color: gold;
}