.main-navigation{
	box-sizing:border-box;
	position:fixed;
	inset:0 0 auto 0;
	z-index:100001;
}
.main-navigation>DIV{
	box-sizing:border-box;
	position:absolute;
	top:30px;
	right:30px;
	width:50px;
	height:50px;
	line-height:50px;
	text-align:center;
	z-index:100002;
}
.main-navigation>DIV::before{
	content:'';
	position:absolute;
	inset:0;
	border-radius:30px;
	background-color:#FFFFFF;
	z-index:-1;
}