.accordion {
    background-color: #eee;
    color: #444;
    cursor: pointer;
    padding: 18px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 15px;
    transition: 0.4s;
    margin-bottom: 0px !important;
    -webkit-touch-callout: none; /* iOS Safari */
    -webkit-user-select: none; /* Safari */
     -khtml-user-select: none; /* Konqueror HTML */
       -moz-user-select: none; /* Firefox */
        -ms-user-select: none; /* Internet Explorer/Edge */
            user-select: none;
}
.accordion:after{
    content: '\f067';
    float: right;
    font-weight: bold;
    fontsx-size: 20px;
    font-family: FontAwesome;
}
.accordion.active:after{
    content: '\f068';
}
.active, .accordion:hover {
    background-color: #ccc;
}

.panel {
    box-sizing: border-box;
    padding: 0 18px;
    border: solid 1px #ccc;
    background-color: white;
    max-height: 0px;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
}
.panel.open{
  max-height: inherit;
}