/* Main content */
section {
    font-size: 16px;
}

/* Question block */
section div {
    border: 1px solid #ccc;
    padding: 16px;
    border-bottom: 0;
}

section div:last-child {
    border-bottom: 1px solid #ccc;
}

/* Question title */
section div a {
    font-weight: bold;
    font-size: 20px;
    text-decoration: none;
    color: #000;
    cursor: pointer;
}

section div a:before {
    content: "\25BE";
    margin-right: 0.8em;
}

/* noinspection CssUnusedSymbol */
section div a.active:before {
    content: "\25B4";
}

/* Answer */
section div p {
    display: none;
    margin-bottom: 0;
}