dark-mode.css

#dark-mode-btn {
	position: fixed;
	right: 20px;
	top: 100px;
	width: 25px;
	height: 25px;
	background-repeat: no-repeat;
	background-size: cover;
	cursor: pointer;
	-webkit-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
	user-select: none;
	transition: background-image .15s ease-in-out .15s;
}

.dark-logo {	
	background-image: url('sun.svg');	
}

.light-logo {
	background-image: url('moon.svg');
}