JSFiddle - React, Tailwind, and code Playground

by Basil Sparrowman

HTML

<div class="cell u5 u1">u1</div>
<div class="cell u10 u5">u10</div>
<div class="cell u13 u5">u13</div>
<div class="cell u1602 u13">u16</div>

CSS

.bg {
    background-color: green;
}

JavaScript

$('.cell').hover(function() {
    $('[class="'+$(this).attr('class')[3] +'"]').addClass('bg');
}, function() {
    $('[class="'+$(this).attr('class')+'"]').removeClass('bg');
});