JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <ul>
        <li>1</li>
        <li>2</li>
        <li>3</li>
        <li>4</li>
        <li>5</li>
        <li>6</li>
        <li>7</li>
        <li>8</li>
        <li>9</li>
        <li>10</li>
        <li>11</li>
        <li>12</li>
        <li>13</li>
        <li>14</li>
        <li>15</li>
    </ul>
</div>

CSS

div {
    background-color: aqua;
    height: 700px;
    display: flex;
    justify-content: center;
}

ul {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    flex-direction: column;
    border: 5px dashed red;
    padding: 5px;
}

li {
    outline: 1px solid;
    background-color: greenYellow;
    list-style-type: none;
    width: 200px;
    height: 150px;
}