#button{display:flex;background-color:#ba2626;width:50px;height:50px;text-align:center;border-radius:100%;position:fixed;bottom:70px;color:#fff;right:30px;align-items:center;justify-content:center;transition:background-color .3s,opacity .5s,visibility .5s;opacity:0;visibility:hidden;z-index:1000;cursor:pointer;box-shadow:0 4px 16px 0 rgba(0,0,0,.4)}#button.show{opacity:1;visibility:visible}html.page-home body main>section.intro-section .container .gallery.gallery-traditional{grid-template-columns:repeat(4,1fr);gap:10px}