header{background-color:var(--black-tint-4);border-bottom:1px solid #0000;justify-content:center;align-items:center;display:flex;box-shadow:0 3px 5px #0000004d}#header-img{height:50px}header a{color:inherit;padding:10px;font-size:20px;text-decoration:none}header button{color:var(--black);background-color:#0000;border:none;padding:10px;font-size:18px}