simple gridd

by Snj

HTML

<div class="cookie-grid-container">
    <section class="cookie-grid-main">
        <div class="cookie-bar-main">
            main
        </div>
    </section>
    <section class="cookie-grid-buttons">
        <div class="cookie-bar-buttons">
          buttons
        </div>
    </section>
</div>

CSS

body { margin: 0; height: 100vh; }

.cookie-grid-container {
    display: inline-grid;
    grid-template-columns: minmax(17em, 100%) minmax(15em, 100%);
    grid-template-areas:
        "cookie-grid-main   cookie-grid-buttons";
    width: 100%;
    background: #026165;
}
section.cookie-grid-main {
    grid-area: cookie-grid-main;
    background: #026165;
    padding-left: 6em;
    margin-top: auto;
    margin-bottom: auto;
}
section.cookie-grid-buttons {
    grid-area: cookie-grid-buttons;
    background: #6ebcbf;
    margin-top: auto;
    margin-bottom: auto;
}