.collapsable_tab {
    max-height: 72px;
    overflow: hidden;
    transition: 0.5s all;
}

.collapsable_tab h2 {
    width: fit-content;
    background: rgb(221, 221, 221);
    padding: 10px 30px;
    cursor: pointer;
}

.collapsable_tab h2:after {
    content: " ↓";
}

.tab_open {
    max-height: 500px;
}

.tab_open h2:after {
    content: " ↑"
}