JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrapper">
    <div class="table">
        <div class="table-cell one">
            <p>small cell</p>
        </div>
        <div class="table-cell two">
            <p>textarea cell</p>
            <textarea></textarea>
        </div>
    </div>
</div>

CSS

.wrapper {
    width: 500px;
}

.table {
    display: block;
    width: 100%;
}
.table-cell {
    display: table-cell;
    background: #E2D8C1;
    vertical-align: top;
    padding: 10px;
}
.table-cell.two {
    width: 100%;
    background: #DAC082;
}
.table textarea {
    max-width: 300px;
    max-height: 200px;
    width: 100px;
    height: 100px
}