.topbar{position:absolute;left:0;right:0;top:0;height:4rem;width:100%;margin:0 auto;padding:.5rem 1rem;z-index:1000;-webkit-transition:all .5s ease;-moz-transition:all .5s ease;-ms-transition:all .5s ease;-o-transition:all .5s ease;transition:all .5s ease}.topbar.fixed{position:fixed;-webkit-backface-visibility:hidden;-moz-backface-visibility:hidden;-ms-backface-visibility:hidden;-o-backface-visibility:hidden;backface-visibility:hidden}.topbar .logo_wrapper{position:relative;height:0;overflow:visible;display:block;z-index:1002}.topbar .logo_wrapper .logo{display:inline-block;height:3rem;width:auto;position:absolute;left:0;top:0}@media screen and (min-width:40em){.topbar{padding:.5rem 2rem}}