JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrapper like-small">
    <div class="a"></div>
    <div class="b"></div>
</div>


<div class="wrapper">
    <div class="a"></div>
    <div class="b"></div>
</div>

CSS

.wrapper.like-small .a,
.wrapper .a {
        height:200px;
        width:200px;
        background:purple;
    }
   
.wrapper.like-small .b,
    .wrapper .b {
       height:200px;
       width:200px;
       background:blue;
 }

@media all and (min-width: 1000px), (min-height: 300px) {
    .wrapper .a {
        height:100px;
        width:100px;
    background:yellow;
    }
    .wrapper .b {
       height:100px;
        width:100px;
    background:red;
    }
}