.mpo-faq {
    margin-bottom: 30px;
}
.mpo-faq-row {
    margin-bottom: 10px;
    background: #fff;
    border-radius: 5px;
    overflow: hidden;
    border: 1px solid #ccc;
}
.mpo-faq-row-header {
    position: relative;
    font-size: 16px;
    padding: 10px;
    cursor: pointer;
}
.mpo-faq-row-header:after {
    content: '';
    position: absolute;
    right: 15px;
    top: 15px;
    border: solid black;
    border-width: 0 3px 3px 0;
    display: inline-block;
    padding: 3px;
    transform: rotate(45deg);
    transition: all .1s ease;
    transform-origin: center;
}
.mpo-faq-row-header.open:after {
    transform: rotate(-135deg);
    top: 17px;
}
.mpo-faq-row-content {
    display: none;
    border-top: 1px solid #ccc;
    padding: 10px; 
}