details {
    border: 4px solid #ffecca;
    margin-bottom: 20px;
}
details,details summary {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: none
}
details summary::-webkit-details-marker,details::-webkit-details-marker {
    display: none
}
details summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    padding: 20px 30px;
}
details summary + div {
    color: #797979;
    padding: 0 30px 20px 30px;
}
details summary + div:before {
    content: '';
    display: block;
    height: 1px;
    border-bottom: 3px dashed #f2f4ce;
    margin-bottom: 20px;
}
details[open] summary:after {
    content: '-';
}
details summary:after {
    content: '+';
}