<style>
.grid-container {
    display: grid;
    grid-template-columns: auto auto;
    grid-auto-rows: 100px;
    background-color: lightsalmon;
}

.grid-item {
    background-color: lightblue;
}
</style>
<div class="grid-container">
<div class="grid-item">1</div>
<div class="grid-item">2</div>
<div class="grid-item">3</div>
<div class="grid-item">4</div>
</div>