JSFiddle - React, Tailwind, and code Playground

HTML

<div class="main">
    <div class="block"></div>
    <div class="block"></div>
    <div class="block"></div>
    
    <div class="block"></div>
    <div class="block"></div>
    <div class="block"></div>
</div>

CSS

.main {
    width: 636px;
    
    margin: 80px auto;
}

.block {
    width: 200px;
    height: 200px;
    
    position: relative;
    float: left;
    margin: 0 5px 10px;
    
    border: 1px solid #000;
    background: #444;
    
    -webkit-transition: all 0.5s ease-in-out;
    -moz-transition: all 0.5s ease-in-out;
    -ms-transition: all 0.5s ease-in-out;
    -o-transition: all 0.5s ease-in-out;
    transition: all 0.5s ease-in-out;
}

.block:hover {
    z-index: 50;
    
    -webkit-transform: scale(1.3,1.3);
    -moz-transform: scale(1.3,1.3);
    -ms-transform: scale(1.3,1.3);
    -o-transform: scale(1.3,1.3);
    transform: scale(1.3,1.3);
}