/* BASIC css start */
header {
	position: fixed; top: 0; left: 50%; z-index: 100;
	transform: translateX(-50%);
	height: 25px;
}
header h1 {
	position: absolute; top: 20px; right: 0;
}
header .btn-menu {
	position: absolute; top: 20px; left: 20px;
	font-size: 25px; font-weight: 500; color: #111;
	transition: all .3s;
}
header .btn-menu.active {
	left: 240px;
}
/* BASIC css end */