#nav ul {margin: 0;padding: 0;width: 100%;display: block;list-style: none;}
#nav li {width: 100%;display: block;}
.js #nav {clip: rect(0 0 0 0);max-height: 0;position: absolute;display: block;overflow: hidden;zoom: 1;}
#nav.opened {max-height: 9999px;}
@media screen and (min-width: 40em) {.js #nav {position: relative;}
	.js #nav.closed {max-height: none;}
	#nav-toggle {display: none;}}