How to add a CTA button to each column in Dawn theme?

Hi @Millie03
Please add the below style at the end of your base.css file

a.link.animate-arrow {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    border: 0;
    padding: 0 3rem;
    cursor: pointer;
    font: inherit;
    font-size: 1.5rem;
    text-decoration: none;
    color: rgb(var(--color-button-text));
    transition: box-shadow var(--duration-short) ease;
    -webkit-appearance: none;
    appearance: none;
    background-color: rgba(var(--color-button),var(--alpha-button-background));
    min-width: calc(12rem + var(--buttons-border-width) * 2);
    min-height: calc(4.5rem + var(--buttons-border-width) * 2);
    --shadow-horizontal-offset: var(--buttons-shadow-horizontal-offset);
    --shadow-vertical-offset: var(--buttons-shadow-vertical-offset);
    --shadow-blur-radius: var(--buttons-shadow-blur-radius);
    --shadow-opacity: var(--buttons-shadow-opacity);
    --border-offset: var(--buttons-border-offset);
    --border-opacity: calc(1 - var(--buttons-border-opacity));
    border-radius: var(--buttons-radius-outset);
    position: relative;
    font-size: 1.5rem;
    letter-spacing: .1rem;
    line-height: calc(1 + .2 / var(--font-body-scale));
}

Here is the output after you add the style