.accordion-container {
    position: relative;
    max-width: 900px;
    height: auto;
    margin: 10px auto;
}

.accordion-container>h2 {
    text-align: center;
    color: #fff;
    padding-bottom: 5px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #ddd;
}

.set {
    position: relative;
    width: 100%;
    height: auto;
    background-color: #f5f5f5;
}

.set>a {
    display: block;
    padding: 10px 15px;
    text-decoration: none;
    color: #555;
    font-weight: 600;
    border-bottom: 1px solid #ddd;
    -webkit-transition: all 0.2s linear;
    -moz-transition: all 0.2s linear;
    transition: all 0.2s linear;
}

.set>a i {
    float: right;
    margin-top: 2px;
}

.set>a.active {
    background-color: #3399cc;
    color: #fff;
}

.content {
    background-color: #fff;
    border-bottom: 1px solid #ddd;
    display: none;
}

.content p {
    padding: 10px 15px;
    margin: 0;
    color: #333;
}