.container-accordion {
    width: 100%;
    display: flex;
    justify-content: center;
}

.accordion {
    width: 100%;
    max-width: 800px;
}

.accordion .contentBx {
    position: relative;
    margin: 10px 20px;
}

.accordion .contentBx .label {
    position: relative;
    padding: 10px;
    background: #5182bb;
    color: #fff;
    cursor: pointer;
}

.accordion .contentBx .label::before {
    content: '+';
    position: absolute;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    font-size: 1.5em;
}

.accordion .contentBx.active .label::before {
    content: '-';
}

.accordion .contentBx .content {
    position: relative;
    background: #fff;
    height: 0;
    overflow: hidden;
    transition: 0.5s;
    overflow-y: auto;
    color: black;
}

.accordion .contentBx.active .content {
    height: 150px;
    padding: 10px;   
}