*{
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}
body{
	display: flex;
	justify-content: center;
	align-items: center;
	min-height: 100vh;
	background: #1e2759;
}
ul{
	position: relative;
	display: flex;
	justify-content: center;
	align-items: center;
	border-radius: 10px;
	box-shadow: 0 5px 25px rgba(0,0,0,0.25);
}
ul li{
	list-style: none;
}
ul li a{
	position: relative;
	color: #fff;
	text-decoration: none;
	display: inline-block;
	padding: 20px 30px;
	z-index: 1000;
	backdrop-filter: blur(15px);
	-webkit-backdrop-filter: blur(15px);
}
ul li a ion-icon{
	font-size: 2.5em;
	pointer-events: none;
	opacity: 0.25;
	transition: 0.25s;
}
ul li:hover a ion-icon{
	opacity: 1;
}
#marker{
	position: absolute;
	top: 0;
	transition: 0.5s;
	z-index: 1;
}
#marker::before{
	content: '';
	position: absolute;
	top: -10px;
	left: 50%;
	transform: translateX(-50%);
	width: 50px;
	height: 40px;
	border-radius: 8px;
}
ul li:nth-child(1).active ~ #marker::before{
	transition: .5s;
	background: #5da6ff;
	box-shadow: 0 0 15px #5da6ff, 0 0 30px #5da6ff, 0 0 45px #5da6ff, 0 0 60px #5da6ff;
}
ul li:nth-child(2).active ~ #marker::before{
	transition: .5s;
	background: #ff0;
	box-shadow: 0 0 15px #ff0, 0 0 30px #ff0, 0 0 45px #ff0, 0 0 60px #ff0;
}
ul li:nth-child(3).active ~ #marker::before{
	transition: .5s;
	background: #0f0;
	box-shadow: 0 0 15px #0f0, 0 0 30px #0f0, 0 0 45px #0f0, 0 0 60px #0f0;
}
ul li:nth-child(4).active ~ #marker::before{
	transition: .5s;
	background: #df2fff;
	box-shadow: 0 0 15px #df2fff, 0 0 30px #df2fff, 0 0 45px #df2fff, 0 0 60px #df2fff;
}
ul li:nth-child(5).active ~ #marker::before{
	transition: .5s;
	background: #ff308f;
	box-shadow: 0 0 15px #ff308f, 0 0 30px #ff308f, 0 0 45px #ff308f, 0 0 60px #ff308f;
}