JSFiddle - React, Tailwind, and code Playground

HTML

<div class="pyramid_row">    
    <div class="box">jednička</div>
</div>
    
<div class="pyramid_row">  
    <div class="box">jednička</div>
    <div class="box">dvojka</div>           
</div>

CSS

.pyramid_row {text-align: center;}
.box {width:100px;height:100px;display: inline-block;border:1px solid grey;}