div.problem {
    border-bottom: 1px solid #DFDFDF;
    margin-bottom: 2em;
    padding-bottom: 2em;
    padding-right: 1em;
}

div.problem-tags {
    font-weight: bold;
    font-style: italic;
    margin: 1em;
    margin-left: 0;
}


details {
    border: 1px solid #DFDFDF;
    margin-top: 1em;
}

details summary {
    background-color: #F8F9FA;
    padding: .5em;
}

details p {
    padding-left: .5em;
}

div.problem img {
    width: 50%;
}

div.choice label {
    display: flex;
    margin-bottom: 1em;
}

div.choice p {
    margin: 0;
    padding: 0;
    margin-left: .5em;
    margin-right: .5em;
};