.three-columns {
    column-count: 3;
    column-gap: 2rem;
    margin-bottom: 20px;
}
.three-columns p {
    display: inline-block;
    width: 100%;
}
.three-columns h3 {
    column-span: all;
}
@media (max-width: 800px) {
    .three-columns {
      column-count: 1;
    }
    .three-columns p {
        display: block;
    }
}