#brx-header{background:transparent;transition:background-color 300ms ease,backdrop-filter 300ms ease,box-shadow 300ms ease;will-change:background-color,backdrop-filter}#brx-header.scrolling{background:rgba(255,255,255,.39);box-shadow:0 4px 30px rgba(0,0,0,.1);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}#brx-header{transition:transform .3s ease-in-out}