.btn {
	display: inline-block;
	width: auto;
	padding: 10px 30px;
	background: $color_screen;
	color: $color_body;
	@include transition(all, linear, 0.3s);
}
.btn:hover,
.btn:focus,
.btn:visited {
	background: $color_hover;
	color: $color_body;
	border: none;
	outline: none;
	cursor: pointer;
}