JSFiddle - React, Tailwind, and code Playground

HTML

<div class="box borda1 cor1 fundo1">
    	<h2 class="h2 cor1h2">Lorem ipsum</h2> 
    <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Morbi eleifend, purus quis laoreet faucibus, ante augue malesuada mi, id rhoncus augue lorem eget elit.</p>
    <p>Ut sollicitudin sodales purus.</p>
</div>
<div class="box borda2 cor2 fundo2">
    	<h2 class="h2 cor2h2">Lorem ipsum</h2> 
    <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Morbi eleifend, purus quis laoreet faucibus, ante augue malesuada mi, id rhoncus augue lorem eget elit.</p>
    <p>Ut sollicitudin sodales purus.</p>
</div>
<div class="box borda3 cor3 fundo3">
    	<h2 class="h2 cor3h2">Lorem ipsum</h2> 
    <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Morbi eleifend, purus quis laoreet faucibus, ante augue malesuada mi, id rhoncus augue lorem eget elit.</p>
    <p>Ut sollicitudin sodales purus.</p>
</div>

CSS

html, body {
    margin: 0;
    padding: 0;
    font: 62.5%/1.3 sans-serif;
}
*, *:before, *:after {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.box {
    width: 20%;
    float:left;
    min-height:20rem;
    margin:2% 1%;
    padding: 0.5% 2%;
    line-height:1.2;
    border-radius: 1rem;
}
.borda1 {
    border: 0.5rem solid #900;
}
/* marrom */
 .borda2 {
    border: 0.5rem solid #060;
}
/* verde */
 .borda3 {
    border: 0.5rem solid #f00;
}
/* vermelho */
 .cor1 {
    color: #0b0ce8;
}
/* azul */
 .cor2 {
    color: #000000;
}
/* preto */
 .cor3 {
    color: #cc3300;
}
/* vermelho */
 .fundo1 {
    background: #ffffc3;
}
/* amarelo */
 .fundo2 {
    background: #87c2e8;
}
/* azul */
 .fundo3 {
    background: #a2ff94;
}
/* verde */
 .box h2 {
    margin:0;
    font-size:2rem;
}
.box p {
    margin:3% 0;
    font-size:1.4rem;
}