Grouping WordPress CPTs

main.css

#adminmenu [id*="menu-posts-"]{
    background-color: var(--bricks-color-primary);
}

#adminmenu [id*=menu-posts-] > a {
    color: black;
}
#adminmenu [id*=menu-posts-] > a .wp-menu-image::before{
    color: black;
}

/* CPT Label */
#adminmenu  li.cpt-menu {
    padding: 0.25rem ;
    display: block;
    border: 1px solid rgba(255,255,255,.4);
    border-radius: 30px;
    color: #ffffffbb;
    margin: 0.25rem ;
    line-height: 1;
    font-size: 10px;
    font-weight: bold;
}

main.js

(()=>{
    const myItems = document.querySelectorAll('[id*="menu-posts-"]');
    const li = document.createElement("li");
    li.textContent = 'Custom Post Types';
    li.classList.add('cpt-menu');
    const parent = myItems[0].parentNode;
    parent.insertBefore(li, myItems[0]);
})();