body{
	margin: 0;
	padding: 0;
}
.icon{
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	width: 100%;
	text-align: center;
}
.tombol{
	display: inline-block;
	width: 90px;
	height: 90px;
	background: #f1f1f1
	margin: 10px;
	border-radius: 30%;
	box-sizing: 0 5px 15px -5px #00000070;
	overflow: hidden;
	position: relative;
	color: #2980b9;	
}
.tombol i{
	transition: 0.2s linear;
	font-size: 26px;
	line-height: 90px;
}
.tombol:hover i{
	transform: scale(1.3);
	color: #f1f1f1
}
.tombol::before{
	content: "";
	position: absolute;
	width: 120px;
	height: 120px;
	left: -110%;
	top: 90%;
	transform: rotate(45deg);
	background: #3498db;
}
.tombol:hover::before{
	left: -10%;
	top: -10%;
	animation: aaa 0.7s 1;
}
@keyframes aaa{
	0%{
	left: -110%;
	top: 90%;
	}
	50%{
	left: 10%;
	top: -30%;
	}
	100%{
	left: -10%;
	top: -10%;
	}
}