.accordion {
    background-color: #0B91A3;
    color: #ffffff;
    cursor: pointer;
    padding: 18px;
    width: 100%;
    text-align: left;
    border: none;
    outline: none;
    transition: 0.4s;
}

.active, .accordion:hover, .accordion:active {
    background-color: #0B91A3;
    background-image: none !important;
}
.panel {
    padding: 0 18px;
    background-color: white;
    max-height: 0;
    /*overflow: hidden;*/
    transition: max-height 0.2s ease-out;
}

.accordion:after {
    content: '\002B'; 
    font-size: 28px;
    color:  #ffffff;
    float: right;
    margin-left: 5px; 
}
.active:after {
    content: "\2212";
}