<style>
    * {
        border: 1px solid black;
    }

    .grid-container {
        display: grid;
        grid-template-columns: repeat(2, [name1] 50px [name2] 100px);
    }

    .a {
        grid-column-start: name2
    }
</style><div class="grid-container"><div class="a">1</div><div>2</div><div>3</div><div>4</div></div>