.header_btn,
.btn {
	position: relative;
	overflow: hidden;
	display: flex;
	justify-content: center;
	align-items: center;
	padding: .25rem .5rem;
	border-radius: .2rem;
	cursor: pointer;
}


.header_btn:hover::before,
.btn:hover::before {
	animation: ripple 1s ease;
}

.header_btn::before,
.btn::before {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(255, 255, 255, 0.7);
	border-radius: 50%;
	transform: scale(0);
}

@keyframes ripple {
	from {
		transform: scale(0);
		opacity: 1;
	}
	to {
		transform: scale(3);
		opacity: 0;
	}
}