JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrap">
    <div class="block"></div>
    <div class="mini"></div>
    <div class="mini"></div>
    <div class="mini"></div>
    <div class="mini"></div>
</div>

CSS

.wrap {
    display: flex;
    width: 100%;
    height: 500px;
    border: 1px solid #ccc;
    flex-wrap: wrap;
    flex-direction: column;
}

.block {
    width: 30%;
    height: 500px;
    background-color: yellow;
}

.mini {
    box-sizing: border-box;
    width: 70%;
    height: 125px;
    background-color: orange;
    border: 1px solid red;
}