header.header{border-bottom:1px solid rgba(0,0,0,.05);box-shadow:0 20px 40px rgba(0,0,0,.06);padding:20px 0;position:fixed;color:#fff;z-index:123456;width:100%;background-color:hsla(0,0%,100%,.97)}.header__dia{max-width:270px;width:100%;height:auto;transition:all .25s}.sticky{max-width:204px}