JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="item">1</div>
    <div class="item">2</div>
    <div class="item">3</div>
    <div class="item">4</div>
    <div class="item">5</div>
    <div class="item">6</div>
    <div class="item">7</div>
</div>

CSS

.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-arownd;
}
.item {
    width: 100px;
    height: 100px;
    background: lightgreen;
    margin: 10px;
    padding: 10px;
    box-sizing: border-box;
    vertical-align: middle;
    transition: all 0.5s;
}
.item:hover {
    width: 400px;
    height: 400px;
    background: lightyellow;
    border: 1px solid green;
}