.accordion {
    cursor: pointer;
    width: 100%;
    outline: none;
    transition: 0.4s;
}

.accordion:after {
    content: '\002B';
    color: #333333;
    font-weight: bold;
    float: right;
    margin-left: 5px;
}

.active-accordion:after {
    content: "\2212";
}