JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li>
        <p>Some Text</p>
    </li>
    <li>
        <p>A bit more text that goes on 2 lines</p>
    </li>
    <li>
        <p>Even more text that demonstrates how lines can span multiple lines</p>
    </li>
</ul>

CSS

li {
    /* This is the code responsible for the centering of content */
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    
    -webkit-flex-pack:center;
	-webkit-justify-content:center;
	-moz-justify-content:center;
	-ms-flex-pack:center;
	justify-content:center;
    
    -webkit-flex-line-pack:center;
	-ms-flex-line-pack:center;
	-webkit-align-content:center;
	align-content:center;
    
    -webkit-flex-direction:column;
	-moz-flex-direction:column;
	-ms-flex-direction:column;
	flex-direction:column;
    
    text-align: center;
    width: 200px;
    height: 200px;

    margin: 0 1em 1em 0;
    padding: 1em;
    
    background: tomato;
    border: 1px solid #333;
    color: #fff;
    font-family: "Helvetica";
    font-size: 0.9em;
}
ul {
   /* This lines the li's up in a row and will wrap them under each other */
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    
    -webkit-flex-direction:row;
    -moz-flex-direction:row;
    -ms-flex-direction:row;
    flex-direction:row;
    
    -webkit-flex-wrap:wrap;
    -moz-flex-wrap:wrap;
    -ms-flex-wrap:wrap;
    flex-wrap:wrap;  
}