article {
    border :1px solid gray;
    margin: 15px auto 15px auto;
    width:500px;
}

article p {
    margin-top: 20px;
    margin-left:10px;
    margin-right:0px;
    padding-right:10px;
}

article button {
    margin: 10px
}

main {
    display:flex;
    flex-wrap:wrap;
}