style.css

@media(min-width: 650px) {
    section {
        display: flex;
        gap: 20px;
    }
}

body {
    margin: 1em;
}
article h3 {
    background-color: rgb(62, 161, 87);
    color: white;
    padding: 1em;
    padding-left: 10px;
    margin: 0;
}
article p {
    padding: 10px;
    margin-top: 0;
    margin-bottom: 0;
}
article {
    border: 1px solid rgb(83, 83, 83);
    box-shadow: 3px 3px 4px 2px #e3e3e3;
    margin-bottom: 20px;
}