body {
    font-family: sans-serif;
}

.webbus__hide-section {
    display: none;
    /*
    max-height: 0px !important;
    overflow: hidden;
    transition: max-height 2s;
    */
}

.section {
    /*
    max-height: 100px;
    transition: max-height 2s;
    */
    margin: 10px;
    padding: 10px;
    border: 1px solid green;
}