h2{
    margin-bottom:2em;
}
textarea {
    width:100%;
}
article {
    border:solid 1px silver;
    border-radius:10px;
    margin:1em 0;
    padding:0.25em 1em;
}
.time{
    font-style:italic;
}
article.a{
    margin-left:5em;
    border-color:blue;
}
article.q{
    margin-right:5em;
    border-color:red;
}